The skateboard's wheels make contact with the ground while someone is skating. To advance the skateboard, the skateboarder applies force to the ground. The propelling force is what's known as this force.
What will happen if a skateboard hits the ground?If the skateboarder doesn't use this propelling power, the skateboard will eventually slow down and stop due to friction between the wheels and the surface. The force that prevents movement between two in contact surfaces is known as friction.The force of friction depends on the nature of the surfaces in contact and the normal force that presses them together.Friction between the wheels and the ground acts in the opposite direction to the motion of the skateboard.As the Skateboarder coasts, the friction force between the wheels and the ground will cause the wheels to slow down, which in turn causes the entire skateboard to slow down.Eventually, the friction force will become so great that the wheels will stop moving, and the Skateboard will come to a stop.To keep the skateboard moving, the Skateboarder must continuously apply a propulsion force to overcome the friction force.To learn more about friction refer:
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Answer:blank 1 pushes, blank 2 friction
Explanation:
describe the three components of attitude. provide an example of when you may use these three components in your work.
The three components of attitude are affective component, behavioral component, and cognitive component.
Attitude is our evaluation of a person, an idea, or an object. We have attitudes toward many things ranging from products that we might pick up in the supermarket to people around the world to political policies. Typically, attitudes are favorable or unfavorable: positive or negative.
They have three components: an affective component (feelings), a behavioral component (the effect of the attitude on behavior), and a cognitive component (belief and knowledge).
Our attitudes and beliefs are not only influenced by external forces, but also by internal influences that we control. Like our behavior, our attitudes and thoughts are not always changed by situational pressures, but they can be consciously changed by our own free will.
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A good leader will have followers who ______. a. are willing to comply with commands b. must be forced to comply with commands c. use lack of compliance to enforce their will d. are focused on their own goals please select the best answer from the choices provided a b c d
A competent leader will have followers who are ready to do as they are told.so the answers is A.
Who is an effective leader?b. must be forced to comply with commands. This is not a desirable trait for a leader, as it implies that the followers do not trust or respect the leader and must be coerced into following their commands.c. use lack of compliance to enforce their will. This is also not a desirable trait, as it implies that the followers do not respect the leader's authority and may actively resist or undermine their commands.d. are focused on their own goals. This is not an ideal trait for a leader, as it implies that the followers are not aligned with the leader's vision and may not be working towards the same objectives.Therefore, the best answer is a. are willing to comply with commands. A leader with followers who willingly comply with commands is a leader who has been able to gain the trust and respect of their followers, which is an important trait for a leader.To learn more about good leader refer:
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A ball of mass 10kg runs up a step of total height 3m .calculate the work done in joule
The correct answer to this question is: work done = 294 Joules
Step-by-step Solution:
There is work done against gravity that is potential energy. It is mathematically given as:
P.E=m*g*h (where g is the acceleration due to gravity, 9.81 m/s)
And m = mass
g = acceleration due to gravity
h = height
P.E=10×9.8×3
P.E= 294 J (J=joules).
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Alan rents a private jet for the weekend. He flies 400km south, then flies 700km west, then 1200km south. What is the distance? What is the displacement?
Explanation:
the distance is easy. this is just the sum of the distances of the individual trips :
400 + 700 + 1200 = 2300 km
the displacement is trickier. this is the line of sight distance between the starting point of the first trip and the ending point of the last trip.
let's imagine a coordination grid with 1 km as unit size, and the starting point being the origin (0, 0).
so, then the trips subtract 400 units from y, then 700 units from x, and then further 1200 units from y.
so, the coordinates of the end point are (-700, -1600).
the displacement (straight distance from the origin) is then found by using Pythagoras
c² = a² + b² (c being the Hypotenuse, a and b the legs)
via the right-angled triangle of the coordinate differences to the origin :
displacement² = (-700)² + (-1600)² =
= 490000 + 2560000 =
= 3050000
displacement = sqrt(3050000) = 1,746.42492... km
class 2 cables shall have a minimum voltage rating of ? a. 150 volts
b. 100 volts
c. 200 volts
d. 300 volts
class 2 cables shall have a minimum voltage rating of 150 volts. Hence, option (a) is correct.
What are class 2 power supply?The LPS or Class 2 power supplies are isolated circuits that are fundamentally limited power supply units by definition.
Under any loading scenario, cannot deliver more than 100VA of continuous perceived power.cannot provide significant current in a short circuit situation.has a maximum open-circuit voltage of 42.4V peak AC or 60V DC that is SELV compatible.The National Electric Code (NEC) also makes reference to class 2 power supplies.
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what is the percent uncertainty in your answer? the uncertainty of the force is 10 n and the uncertainty of the acceleration is 0.01 m/s2 .
The uncertainty of the force is 10 N and the uncertainty of the acceleration is 0.01 m/s². The mass of the beam is 250 kg and its uncertainty is 12.5%.
Using the Newton second law of motion:
F = ma
m = F/a
Where:
F = the applied force
m = mass
a = acceleration.
In this problem, the force = 100 N with uncertainly 10 N.
Hence, incorporating its uncertainty, we can write
F = ( 100 ± 10 ) N or in percentage F = 100 ± (10%) N
The acceleration is 0.4 m/s² and its uncertainty is 0.01 m/s²
Hence, we can write:
a = ( 0.4 ± 0.01 ) m/s² or in percentage a = 0.4 ± (2.5% ) m/s²
The mass of the beam can be calculated as:
m = F/a
= 100/0.4 = 250 kg
The rule for the uncertainty in calculated result is: If data are multiplied or divided, the percentage uncertainty of the result is equal to the sum of the individual data uncertainties.
Hence, the uncertainty of the calculated mass (in percentage) is:
10% + 2.5% = 12.5%.
Therefore, we can write the result as:
m = 250 ± (12.5% ) kg
Your question is incomplete. Most likely, it was:
An astronaut exerts a 100 N force pushing a beam into place on the International Space Station. The beam accelerates at 0.40 m/s² . Find the mass of the beam. What is the percent uncertainty in your answer? The uncertainty of the force is 10 N and the uncertainty of the acceleration is 0.01 m/s².
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what component acts as small sized switches and is used to close an electric circuit when the button is pressed?
A relay is a type of electrically operated switch that is used to close or open a circuit when an external switch or button is pressed.
What is circuit?A circuit is an interconnected system of components, such as resistors, capacitors, and transistors, that allow an electric current to flow through them, producing a desired electrical effect. Electric circuits are used in a variety of applications, from powering lights and motors to powering computers and the internet. Creating a circuit involves connecting the components in such a way that the current will flow in a closed loop, allowing energy to be transferred from one component to another.
It is a small-sized switch that is typically used in low voltage or high current applications. A relay consists of an electromagnet, which is activated when an electric current is passed through it, and a set of contacts that open or close the circuit when the electromagnet is activated. In a relay, the electromagnet is powered by a low voltage source and the contacts are powered by a higher voltage source. When the switch or button is pressed, the electromagnet is activated, which causes the contacts to close or open the circuit, depending on the type of relay.
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When shooting a bow and arrow, when the archer pulls back the string, the bow flexes! Now the flexed bow has.
a. Potential energy
b. Kinetic energy
c. Motion
d. Work
When shooting a bow and arrow, the archer pulls back the string and flexes the bow, storing potential energy.
What is potential energy?Potential energy is the energy stored in an object due to its position or configuration. This type of energy is the stored energy of an object, which can be released and transformed into other forms of energy, such as kinetic energy. Potential energy is associated with forces such as gravity, electrical, and chemical, which can cause a change in an object’s energy state. Examples of potential energy include a stretched bow and arrow, a roller coaster at the top of a hill, and a compressed spring.
This potential energy is then transferred to the arrow in the form of kinetic energy. The arrow is then put in motion by the archer and due to the force of the bowstring, work is done in the form of acceleration. The arrow is then released and the kinetic energy propels it towards the target.
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Generates a large volume of solid radioactive waste. fission
Fission generates a large volume of solid radioactive waste.
What is fission? Atoms are torn apart through nuclear fission in order to release the nuclear energy that holds them together. This energy is released as heat and radiation, with a nuclear power plant using the heat to boil water into steam that turns a turbine and powers generators to generate electricity. Nuclear fission produces no carbon emissions since it produces heat using uranium rather than fossil fuels.At a power plant, uranium is placed in enclosed metal cylinders inside a steel reactor vessel to break atoms. Subsequently, neutrons are fired at the uranium atoms, causing them to split and release further neutrons that then strike other atoms, starting a chain reaction that divides more atoms and releases energy.For more information on fission kindly visit to
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PLEASE HELP A BROTHER OUT :(
A book of weight 2.5n rests on a horizontal table top and by means of a pencil a horizontal force of 2n is applied to the book causing it to slide.The force of friction on the sliding book is 1n.
A-draw a diagram of the set up to show the book at rest on the table top and forces acted on the book before the pencil was used.
B-name and give the magnitude of each force acting on the book before the force was applied with the pencil.
C-write a brief explanation for the stae of rest of the book.
D-draw a separate diagram to show the sliding book and the forces acted on it.
E-calculate the velocity of the book when the applied force has been acting on it for 1.5 seconds.
Use gravity=10 (n/kg)
A-
The diagram of the set up shows the book resting on a horizontal table top with the force of gravity acting on it.
B-
The force acting on the book before the force was applied with the pencil is the force of gravity.
The magnitude of the force of gravity is 2.5n (the weight of the book).
C-
The book is at rest due to the force of friction being equal to the force of gravity. The force of friction is opposing the force of gravity, preventing the book from moving.
D-
The diagram shows the sliding book with the force of friction opposing the applied force of 2n and the force of gravity acting on it.
E-
The acceleration of the book can be calculated by the force acting on it divided by the mass of the book.
a = (Fapplied - Ffriction) / m
a = (2 - 1) / 2.5 = 0.4 m/s^2
The velocity of the book can be calculated using the equation:
v = a * t
v = 0.4 * 1.5 = 0.6 m/s
The book will have a velocity of 0.6 m/s when the applied force has been acting on it for 1.5 seconds.
the wheels of a bicycle are 725 mm in diameter. how many revolutions would these wheels make during a 4.55 mile ride?
The number of revolutions that the wheel has to make to travel 4.55 miles is 3214 revolutions.
The number of revolutions made by a circle of radius r to cover a distance s is s= 2 πr. In covering a distance s m, a circular wheel of radius r m makes s2πr revolution.
The diameter of the wheel is 725mm or 0.725 m. The distance the wheel has to go is x=4.55 miles or 7323 m.
The circumference of the wheel is πD where D is the diameter. Therefore the number of revolutions to travel distance X is no. of revolution = X/(πD). So if D = 0.725m and X = 7323m. Then the number of revolutions = 7323/(π x 0.725) = 3213.85 revolutions or 3214 revolutions.
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Of visible light, which color has the most energy? Which color has the least energy?
Of visible light, violet color having the most energy and red has the least energy.
What does visible light refer to?Light, also known as "visible light," is a term used to describe the region of the electromagnetic spectrum that is visible to humans and contains the wavelengths that cause them to perceive brightness and color. Infrared radiation is sandwiched between UV and it.
Humans can only see visible light waves, which are the only wavelengths of the electromagnetic spectrum. Red, orange, yellow, green, blue, indigo, and violet make up the rainbow's color spectrum. There are many different wavelengths of visible light.
Their 400–700 nanometer wavelength falls within that range. For the sense of sight, it is accountable. The source of the radiation is electromagnetic.
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A runner was going at a velocity of 12 m/s but got tired and, after 4 seconds, slowed down to 8 m/s. What is the runners acceleration?
Answer:
-4.0 m/s²
Explanation:
a = Δv/Δt = (8 m/s - 12 m/2) / 4 s = -4.0 m/s²
the negative sign means the runner was slowing down (decelerating)
the accumulation of excess electric charge on an object is called
How do we use or encounter electromagnetic waves in everyday life?
Some common everyday uses for electromagnetic waves are Wireless local area networks (Wi-Fi), cell phones, radio broadcasting, cooking, and even cancer treatment.
EM waves, or electromagnetic waves, are generated when an electric field and a magnetic field cause vibrations. Radio waves, microwaves, infrared, visible, ultraviolet, X-rays, and gamma rays are the seven different types of electromagnetic waves.
There are numerous applications for radio waves, including media broadcasting, wireless communication, radio telescopes, etc. Microwaves are utilized widely in wireless networks, satellite and spacecraft communications, microwave radio relay networks, medical treatment, remote sensing, particle accelerators, radio astronomy, and spectroscopy, among other applications. Infrared wavelengths enable us to track and monitor the temperature patterns of the Earth. They are also utilized for thermal imaging and remote digital device controls. X-rays are renowned for their use in medical imaging. Gamma radiations are created by nuclear processes, nuclear decay, and star explosions, among other phenomena.
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Please Help!
7. How much potential energy is contained in a 52 kg skier at the top of a 150 m ski
slope?
Potential Energy is the energy that an object has stored in relation to its position in space.
What is Potential energy?One sort of potential energy is gravitational potential energy, which is equal to the product of the object's mass (m), the gravitational acceleration (g), and the object's height (h) as measured in relation to the ground's surface (the body).
You may determine the amount of energy that an elevated object has stored in it using a potential energy calculator.
Because it pertains to the energy that an object stores as a result of its vertical position or height, the full term of this effect is gravitational potential energy.
Therefore, Potential Energy is the energy that an object has stored in relation to its position in space.
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a cart is being pushed downwards with a force of 125 n at an angle of 30 and it is moving at a velocity of 12.58 what is the friction force
The friction force, a force that opposes motion between two surfaces that are in contact is 64.98 N.
Friction force arises due to the roughness of the surfaces in contact, as well as the nature of the materials that make up the surfaces. There are two types of friction: static friction and kinetic friction.
Static friction is the force that prevents an object from moving when a force is applied to it, while kinetic friction is the force that opposes motion once an object is already in motion.
Calculate the normal force:
F_normal=mgcosθ
= (125 kg)(9.81 m/s^2)cos(30°)
= 972.86 N
Calculate the coefficient of friction:
μ = Friction force / Normal force
= 64.98 N / 972.86 N
= 0.066
Calculate the friction force:
F_friction = μN
= (0.066)(972.86 N)
= 64.98 N
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what someone might say about your knowledge of atoms is
An atom is a unit of matter that specifically characterises a chemical element. One or more negatively charged electrons surround the core nucleus of an atom, which is made up of all of them.
What did you learn about atoms?The fundamental unit of chemistry is the atom. It is the smallest particle that can be separated into matter without releasing electrically charged particles. Additionally, it is the smallest piece of matter with the characteristics of a chemical element.When British chemist John Dalton established that chemicals always have whole number ratios of atoms, he provided the first modern proof that atoms exist. Because of this, it is H2O and not H20.The fundamental building blocks of all the substances on earth are called atoms. Our bodies contain atoms, which combine to create the molecules that make up matter.To learn more about chemical refer to:
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An atom is a unit of matter that specifically characterises a chemical element. One or more negatively charged electrons surround the core nucleus of an atom, which is made up of all of them.
What did you learn about atoms?The fundamental unit of chemistry is the atom. It is the smallest particle that can be separated into matter without releasing electrically charged particles. Additionally, it is the smallest piece of matter with the characteristics of a chemical element.
When British chemist John Dalton established that chemicals always have whole number ratios of atoms, he provided the first modern proof that atoms exist. Because of this, it is H2O and not H20.
The fundamental building blocks of all the substances on earth are called atoms. Our bodies contain atoms, which combine to create the molecules that make up matter.
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explain the relationship between displacement, velocity, and acceleration. how are total distance and speed related to these concepts?
Velocity is the change of an object displacement over time and acceleration is the change of velocity over time. Total distance is related to speed, which is a scalar quantity of how fast an object is moving.
Velocity is a vector quantity. Velocity means how fast an object is changing its position. As a vector quantity, velocity is direction aware and can be noted as negative or positive value based on its direction. Velocity can be calculated by dividing an object displacement and the time the object moves. Velocity can be formulated as:
Velocity = Displacement : Time
Speed on the other hand, is a scalar quantity. Hence speed pay no attention to the direction of an object's movement. Speed is calculated by dividing an object's total distance over time. Speed only anwer how fast an object is moving.
Distance and displacement might sound as similar things however they are different. Distance is a scalar quantity and represents the area an object covers on its motion. Displacement is a vector quantity and answer an object's overall change in position after its movement. Any changing in direction of an object's movement might be calculated as negative on displacement perspective.
Acceleration refers to the changing of an object's velocity over time. Acceleration can be formulated as:
Acceleation = Δvelocity : Time
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the time period of planet x around sun is 8 times that of y. the distance of x from the sun is how many times greater than that of y?
The distance of planet X from the sun is 8 times greater than that of planet Y.
The time period of a planet around the sun is directly proportional to the distance of the planet from the sun. The relationship between the time period and distance of a planet around the sun is given by the formula T^2 = k*r^3, where T is the time period, r is the distance of the planet from the sun and k is a constant.
Given that the time period of planet X around the sun is 8 times that of planet Y.
T_x = 8 * T_y
We can square the equation, we have:
T_x^2 = 8^2 * T_y^2
We can divide the above equation by the constant k, we have:
r_x^3 = 8^2 * r_y^3
We can take the cube root of both sides, we have:
r_x = (8^2 * r_y^3)^(1/3)
r_x = 8 * r_y
So the distance of planet X from the sun is 8 times greater than that of planet Y.
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in this guided lab you determined the approximate depth of the mt. vesuvius crater. (round your answers to the nearest whole number.) what is the depth of the crater in meters?
In Guided Lab 1, the distance from the center of the Mt. Vesuvius crater to the coast was found and it is approximately 7 kilometers.
The distance can be determined using different methods such as using a map and a ruler, using GIS software or a mapping website, such as Maps, or using a GPS device or smartphone app.
It is important to note that this distance may vary depending on the measurement method and location, and it should be a rough estimation.
Mt Vesuvius is an active volcano located on the east coast of the Italian Peninsula, southeast of Naples, it is one of the most dangerous volcanoes in the world due to its proximity to the city of Naples, it last erupted in 1944. The volcano has a crater that is about 800 meters wide and 140 meters deep.
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Fig. 4.1 shows a device used as a thermocouple thermometer.
In the table put three ticks against the correct statements about the thermocouple
thermometer
Thermocouple, thermometer a temperature-measuring device consisting of two wires of different metals joined at each end.
One junction is placed where the temperature is to be measured, and the other is kept at a constant lower temperature. Meter connected in middle measures potential difference.
Hence correct statements are :
1. Meter Z measures potential difference
2. Materials X and Y are different materials.
3. Materials X and Y are electrical conductors.
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The correct statements are :
1. Meter Z measures potential difference
2. Materials X & Y are different materials.
3. Materials X & Y are electrical conductors.
What is a Thermocouple?Two wires of various metals are joined at each end to form a thermocouple, a temperature-measuring instrument. The junction that will be used to measure temperature is placed there, and the other junction is maintained at a lower temperature at all times. Potential difference is measured by a metre connected in the middle.
A thermocouple, also referred to as a "thermoelectrical thermometer," is an electrical component made up of two conductors that are not similar to one another and that come together to form an electrical junction. The Seebeck effect causes a thermocouple to generate a voltage that is temperature-dependent, and this voltage can be used to calculate the temperature. Temperature sensors that are commonly used are thermocouples.
Commercial thermocouples can measure a wide range of temperatures, are reasonably priced, interchangeable, and come with standardised connectors. Thermocouples don't need an external source of excitation and are self-powered, unlike the majority of other temperature measurement techniques. Accuracy is thermocouples' main drawback; it can be challenging to achieve system errors of less than one degree Celsius (°C).
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The melting point range will be narrower than expected. How would having too much sample in the melting point tube most likely affect a melting point measurement
The melting point range will be broader than expected. In this scenario, the melting point tube most likely affect a melting point measurement.
When too much sample is placed in the melting point tube, it can affect the measurement of the melting point in several ways. One of the most likely effects is that the melting point range will be broader than expected. This occurs because the excess sample in the tube will impede the heat transfer to the sample, causing the sample to melt over a wider temperature range. As a result, the temperature at which the sample begins to melt and the temperature at which it is completely melted will be farther apart, resulting in a broader melting point range
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what is the difference between a fast-break and slow-break offensive style?
The fast-break offensive style offers fast movement from one part of the court to another and a chance for scoring. Fast, quick passes down the court and using more players on the offensive than the opposition has on defense are characteristics of the style. The slow break style of play is characterised by slower, more methodical play.
Man-to-man defense and zone defense are the two different defensive alignments used in basketball. Coaches must consider the individual circumstances surrounding their club because the roster set-up may favour one defense over another.
A team tries to advance the ball up court and into scoring position as rapidly as they can during a fast break so that the defense is out numbered and cannot prepare.
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When liquid helium is exposed to room temperature, it forms a gas. Which best explains why this happens?
Answer:
the liquid helium absorbs energy from the air in the room
How does using a small paper clip help to measure the strength of an electromagnet?
How does using a large paper clip help to measure the strength of an electromagnet?
The small paper clip means the less strength of an electromagnet. Whereas large paper clip means higher strength of an electromagnet.
How can electromagnet be used?The measure of the magnet's strength can be accounted by counting the number of paper clips your electromagnet can lift. A specific quantity of mass can only be picked up by each electromagnet that is produced. More light things and fewer heavier ones are picked up by the electromagnet.
An electromagnet's or solenoid's magnetic field strength is determined by the coil's length L, current flow rate (in amps), and number (N) of turns.
The amount of paper clips held grows with the number of spins. This indicates that as the coil's turns rise, so does the magnet's strength.
Since paperclips are not magnetic by nature, they cannot be chained together on their own. The paperclips can, however, be momentarily magnetic by employing a magnet. A paper clip's steel can be easily magnetic, but it quickly loses its magnetism.
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racing on a flat track, a car taking 5.5 s to round a curve of a radius of 56 m. what is the centripetal acceleration of the car?
The centripetal acceleration of the car is 1.85 m/s²
The speed at which anything moves around a circle is known as its centripetal acceleration. Centripetal acceleration is the acceleration experienced by any object that is travelling in a circle and whose acceleration vector is directed toward the center of the circle.
To find the centripetal acceleration of the car, we can use this following formula:
Centripetal acceleration = v²/r
In this case, we are given that:
The time that car was taking = 5.5 s
The radius of the car (r) = 56 m
The velocity of the car (v) = distance : time = 56 m : 5.5 s = 10.18 m/s
Hence, the centripetal acceleration:
Centripetal acceleration = 10.18² / 56
Centripetal acceleration = 1.85 m/s²
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a box that weighs 785 n is lifted a distance of 20.0 m straight up by a cable attached to a motor. the job is done in 6.5 s. what power is developed by the motor in watts and kilowatts?
A box that weighs 785 n is lifted a distance of 20.0 m straight up by a cable attached to a motor. the job is done in 6.5 s.2415.38 watts power is developed by the motor in watts .
What is Power?The quantity of energy transferred or transformed per unit of time is termed as as power. Power sometimes is also referred to as activity in ancient writings. A scalar quantity is power.
S.I Unit of Power is WattGiven:
F=785N
d=20.0m
t=6.5s
To find power :
The rate of work would be the deciding factor here. As a result, the work will always equal the force times the displacement. Given that the force and displacement are a perfect sine wave, this would be an equal relationship.
Hence, P=Fd/t
putting values
P=785*20/6.5
P=2415.38 watts
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for a spacecraft going from the earth toward the sun, at what distance from the earth will the gravitational forces due to the sun and the earth cancel?
For a spacecraft going from the earth toward the sun, at no point of distance from the earth will the gravitational forces due to the sun and the earth cancel due to The Sun is being drawn toward the Earth by its gravitational pull.
What is gravitational force?All physical things with mass are drawn to the gravitational force, which can be thought of as an attracting force. Gravitational force is the known natural force that is by far considered the weakest.
The gravitational force is what pulls objects with mass in the same direction. The gravitational attraction of the Earth is something we often think about. Gravity, however, draws all mass-bearing objects in the same direction.
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The top of the syringe is a circle. You need to
compute its area for use in later computations of
pressure values. Start by using a ruler to
measure the diameter. Estimate to the nearest
0. 01 cm. ?cm
The syringe's circle measures 10.17 cm² in size.
Concept • The circle's radius, or r, determines its area, which is equal to twice its diameter, or r.
The region encircled by a circle with radius r is known as r2 in geometry. Here, the Greek letter stands for the constant proportion of a circle's circumference to its diameter, which is roughly equivalent to 3.14159.
Since the base area is known, the volume can be determined by dividing the base area by the height. *Remember that volume is expressed in cubic units.
We must determine the circle's surface area given its diameter, 1.80 cm, and radius.
The formula πr² can be used to get the circle's area.
Change the formula's value for r.
Circle area is equal to r12 3.14 1.80 1.80, or 10.17 cm2.
Consequently, the Circle's area is 10.17 cm².
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Complete Question -
The top of the syringe is a circle. You need to
compute its area for use in later computations of
pressure values. Start by using a ruler to measure
the diameter. Estimate to the nearest 0.01 cm.
3.60
cm
COMPLETE
Divide by two to find the radius. Maintain
significant figures. 1.80
✓ cm
MM
CM
1
2
3
4
5