Answer:
inertia of motion ..........
observed voltages not being shared identify components in parallel in a series-parallel circuit. group of answer choices true false
In a parallel circuit, each component is subject to the same voltage.
Is the voltage the same in a series-parallel circuit?In a series circuit, the current flowing through each component is the same, and the voltage across the circuit equals the sum of the voltages across each component. The voltage across each component in a parallel circuit is the same, and the total current is the sum of the currents flowing through all of the components. In a series circuit, the components share the supply voltage. The voltage of the supply is equal to the sum of the voltages across components connected in series. There are two or more paths for current to travel through in a parallel circuit. Each element of the parallel circuit has the same voltage applied to it. The total amount of current coming from the source
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in hydrogen fusion, four protons crash into each other to produce a helium nucleus. but the helium nucleus (and other particles created in the reaction, such as neutrinos) is less massive than the protons that form it. what happens to the missing mass?
Missing mass converted into energy.
How does the fusion of four hydrogen atoms into helium atoms occur?Four hydrogen nuclei (photons) combine to form a helium nucleus in the fundamental hydrogen fusion cycle. In the star's core, throughout this fusion cycle, energy is released; in other words, energy is released during this process.
Compared to the original four protons that joined together, the final helium-4 atom weighs less (see E=mc2). Because of this, the mass-energy equivalence of their interaction causes an excess of energy to be released from the Sun as heat and light.
The sun and the stars are propelled by fusion. In one instance of this kind of reaction, two hydrogen atoms combine to create an atom of helium. During the process, a portion of the hydrogen's mass is transformed into energy.
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55. A 500 gram ball begins from rest and rolls down a 30° frictionless incline.
a. What is the ball's acceleration?
b. What is the ball's velocity after 15 seconds?
Acceleration : a. F=ma, mg cos(90°-θ)= ma, g cos (90°-θ)= a, g sin(θ) = a, g sin(30°)= a
b. v= u+(a*t), u=0, v= (a*t), v= ( g sin(30°) * 15 ).
What is Acceleration?
If an object's velocity changes, it is said to have been accelerated. An object's velocity can change depending on whether it moves faster or slower or in a different direction. A falling apple, the moon orbiting the earth, and a car stopped at a stop sign are a few instances of acceleration. Through these illustrations, we can see that acceleration happens whenever a moving object changes its direction or speed, or both.
Therefore, the acceleration and velocity are solve.
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7) Your Grandma is following behind you on the trip to Dallas, but she refuses to drive
faster than 60 miles per hour. If she drives at that speed for the entire trip, how much
later will she arrive in Dallas
Answer:
Grandma will arive [tex]\frac{1}{2}[/tex]hr later
Explanation:
[tex]s=20\\d=210 mi|\\ s=70 mi|h \\ \\ \frac{60}{1} =\frac{210}{+} = 3.5 hrs[/tex]
An aluminum tube of 3-in. Outside diameter is to carry a load P of 10 kips having an eccentricity e = 0. 6 in. Knowing that the stock of tubes available for use are made of aluminum alloy 2014-T6 and have wall thicknesses in increments of 116 in. Up to 12 in. , determine the lightest tube that can be used. Use the interaction method of design with an allowable stress in bending of 25 ksi. (Input the final answer as a fraction. )
The Method of Interaction It's a cooperative method for more effective teamwork.
Explain about the Interaction Method?
A combination of hardware and software components that enables computer users to carry out a single job is known as an interaction technique, user interface technique, or input technique.
Four fundamental interaction tasks exist: position, text, select, and quantify. These can be carried out using a variety of hardware and software tools, each of which has been given a category based on its capabilities and qualities.
An interaction occurs when two or more factors have an impact on one another. If one investigates each of their effects independently, they may not have as strong an impact on a result as they might if they occur simultaneously and interact. Caffeine and painkillers are an example of such interaction.
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what is the moment of inertia of the object starting from rest if it has a final velocity of 6.1 m/s? express the moment of inertia as a multiple of mr2 , where m is the mass of the object and r is its radius.
The moment of inertia of the object is 0.053MR^2 .
Moment of inertia is defined as the quantity expressed by the body resisting angular acceleration which is the sum of the product of the mass of every particle with its square of a distance from the axis of rotation.
We can calculate the moment of inertia of an object that starts from rest and also has a final velocity using the energy conservation equation, as follows:
Then Ek1 + Ep1 is = Ek2 + Ep2, where
After that Ek1 is = kinetic energy of the object before rolling down
Now Ep1 is = potential energy of the object
Then Ek2 is = kinetic energy when the object comes down
After that Ep2 is = potential energy of the object at the bottom
[tex]Mgh = \frac{Iv^{2} }{2R^{2} } + \frac{MV^{2} }{2}[/tex]
putting the values, we get
19.6 M = 18.6 I/(R^2) + 18.6 M
I = 0.053MR^2
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a 10-kg object is on a table, the coefficient of static and kinetic friction between the object and the table is 0.4 and 0.2, respectively. calculate the frictional force applied on the object if a horizontal force of 50n is applied on the object? (free-fall acceleration g
The frictional force applied on the object if a horizontal force of 50N is applied on the object is 19.6 N
N = m g
N = Normal force
m = Mass
g = Acceleration dur to gravity
m = 10 kg
g = 9.8 m / s²
N = 10 * 9.8
N = 98 N
f = μ N
f = Frictional force
μ = Co-efficient of friction
For static friction,
μ = 0.4
f = 0.4 * 98
f = 39.2 N
For kinetic friction,
μ = 0.2
f = 0.2 * 98
f = 19.6 N
Since Applied force of 50 N is greater than the static frictional force of 39.2 N, the frictional force acting on the object is frictional force.
Therefore, the frictional force applied on the object is 19.6 N
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fiona is trying to describe the location of some of the brightest set of stars in the northern sky, betelgeuse and rigel, to a friend. what could she have her friend look for to help find the stars?
What Fiona did, so her friend could find the stars was to give her friends knowledge about the contents of the sky, such as the shape of planets and stars. Then when you want to see the stars, you have to stay away from light pollution, so the stars can be seen clearly.
Stars are celestial bodies that emit light caused by nuclear fusion reactions that produce energy that occurs in their cores. It should be noted that 'pseudo stars' are not stars, but planets that reflect light from other stars and appear to glow in the sky like a star. A planet or planetary star is an astronomical body orbiting a star or stellar remnant that is massive enough to have its own gravity.
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how can an object be accelerating while maintaining a constant speed? what force or forces can cause this type of acceleration and how exactly must they be oriented relative to the motion of the object?
Even if an object's speed is constant, it can nonetheless accelerate if its direction changes.
Newton postulated that an object will only accelerate in the presence of a net or unbalanced force.
How can an object accelerate while maintaining a constant speed?An object's velocity (speed and direction) changes at a certain rate, which is called acceleration. As a result, even if an object's speed remains constant, its direction may shift, causing it to accelerate. But the acceleration of an object will be 0 if its velocity is constant.
According to Newton, an item will only accelerate if another force is operating on it that is net or imbalanced. If an imbalanced force is present, the object will accelerate and change its direction and speed, or both.
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Subduction zones are associated with
Group of answer choices below
A. divergent boundaries.
B. transform boundaries.
C. convergent boundaries.
D. none of these
Subduction zones are associated with convergent boundaries.
option C is the correct answer.
What is subduction zone?
Subduction zones are plate tectonic boundaries where two plates converge or meet together, and one plate is pushed below the other plate due to underlying forces.
The following are characteristics of subduction zones;
In a subduction zone, at least one of the converging plates must be cold and dense. The more dense plate is usually the older oceanic plate.One plate must bend and move beneath the other plate. That is one plate must be on top while the other plate must be below.Convection currents, or cycling, in the mantle, must be moving downwards, pulling on the denser plate.Subduction zones is usually associated with some geo-hazards, such as;
earthquakes and volcanoesThus, we can conclude that the main feature or characteristics of subduction zones is convergent boundaries resulting from the convergent plates.
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The weight of the builder and new roof tiles is 640 N. The slope is at 30 degrees on the given diagram.
Draw a diagram to calculate the components of the total weight
parallel and perpendicular to the slope of the roof.
The parallel component of the total weight is 320 N.
The perpendicular component of the total weight is 554.3 N.
What is the components of the total weight?
The components of the total weight of the builder and new roof tiles can be parallel component or perpendicular component.
The parallel component of the total weight of the builder and new roof tiles is calculated as follows;
Fn ( parallel ) = W sin ( θ )
where;
W is the total weight of the builder and the new roof tileθ is the slope or angle of inclination of the total weightFn ( parallel ) = W sin ( θ )
Fn ( parallel ) = 640 sin ( 30 )
Fn ( parallel ) = 320 N
The perpendicular component of the total weight of the builder and new roof tiles is calculated as follows;
Fn ( parallel ) = W cos ( θ )
where;
W is the total weight of the builder and the new roof tileθ is the slope or angle of inclination of the total weightFn ( perpendicular ) = W cos ( θ )
Fn ( perpendicular ) = 640 cos ( 30 )
Fn ( perpendicular ) = 554.3 N
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What is the velocity of a 1.2 kg ball rolling with a momentum of 15.6 kg m/s?
Answer:
Velocity V = 13 m/s
Explanation:
Given:
m = 1.2 kg
p = 15.6 kg·m/s
__________
V - ?
Momentum:
p = m·V
Velocity:
V =p /m = 15.6 / 1.2 ≈ 13 m/s
A ball released from the tree top if a height of 45m. How long does it take to reach the ground?
The ball will take 45 seconds to reach the ground.
U=0(since ball is dropping)
So, we have to find t=?
Given
a=-9.8m/s
S=45m
As we know,
S=ut+1/2at^2
so,
t^2=45×90/2
hence
t=45s.
so the time taken is 45 seconds.
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a cylindrical barrel of mass 30 kg and diameter 90 cm is floating in a bay. a 70 kg person steps onto the barrel, causing it to descend a little farther into the water. find the distance the barrel sinks (in cm) after this additional weight is added.
The distance the barrel sinks (in cm) after this additional weight is added is 108.6 cm
An object floats when the weight pressure on the object is balanced by the upward push of the water at the object. The upwards push of the water will increase with the extent of the item this is below water; it isn't tormented by the intensity of the water or the quantity of water.
Calculation:-
m = 30 kg
Fb ----- Bouyance force = ρgVd
Vd = volume inside water
Fb = mg
ρ v ₓ g = mg
1000 ×π/4 (0.9)²X₁ = m ---------------(1)
V = π/4(0.9)²X₁
After the person has stepped
Fb = ( 70 × 9.8 + 30 × 9.8)
1000 × π//4 (0.9)² × X₂ = 100 ------ (2)
(2) -(1)
1000 × π/4*(0.9)² × (X₂ - X₁) = 1-- - 30
(X₂ - X₁) = 1.086 m
Therefore the distance the barrel shrinks = 108.6 cm
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Suggest why the designer of a car simulator needs to study physics
The designer of a car simulator needs to study physics because their simulator must obey all the laws of physics. For instance, we can investigate if a car will flip if it drives on a circular track with a specific radius. Physics is also important in determining the cause of many vehicle accidents. As a result, physics is essential in the study of automotive motion.
What is a Car Simulator?
Driving simulators, like flight simulators, immerse the driver in an artificial environment that is thought to be a legitimate alternative for one or more components of the actual driving experience. Driving simulators, on the other hand, support much more than driver instruction, in contrast to flight simulators, which were designed primarily for pilot training.
A driving simulator can alleviate these fears by illustrating what occurs when a motorist exceeds the speed limit and how this affects their response time. There is no way to educate kids this similar circumstances on the road without endangering everyone.
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two cars, car x and car y, are moving with the same velocity, and slam on the brakes coming to a stop. car x is more massive than car y. for which car is the amount of work done by friction in stopping it the highest?
The amount of work done by friction in stopping the car is given as
Wx > Wy.
There are two cars moving with the same velocity
car X is more massive than car Y
mass of car X = Mx
mass of car Y = My
here given, Mx > My
The distance travelled will be the same as the initial velocity, and it is independent of mass.
Let, μ be the coefficient of kinetic friction
work done by the frictional force is given as:
F = μMg
Fx = μMxg
Fy = μMyg
W = F.s
Wx = μMxg.s
Wy = μMyg.s
Wx > Wy
The amount of work done by friction in stopping the car is given as
Wx > Wy.
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a 5.0- kg box is pulled by a horizontal force f applied to the top of the box. when the box meets a low doorstep, it begins to rotate around it. the box is 60 cm wide and 100 cm high. what minimum magnitude of the force f is needed to cause this movement?
The minimum magnitude of the force f is 21 N needed to cause the movement of a 5 kg box pulled by a horizontal force.
What is force and how is the magnitude of force comes out to be 21 N ?Force is the newtonian quantity which represents the product of mass and acceleration.The mass of the box is given to be 5 kg and the box is 60 cm wide and the height is 100 cm .When the block about to rotate normal shifted to the edge of the cube , mg(w/2) = Fh, F = mgx (w/2)= Fh taking g as 9.8 m/s^2.Substituting the values , F = (5 × 9.8 ( 60/2)) / 70Then the force would be , F = (5 × 9.8 × 30 ) / 70,F = 1470 / 70,F = 21 N.Hence the magnitude of the force comes out to be 21 N.Therefore when a 5 kg box is pulled by a horizontal force f applied to the top of the box, the minimum magnitude of the force f needed is 21N.To know more about force visit:
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a car moving at a constant speed of 30 m/s travels rounds a circular bend. as the car rounds the bend, it experiences a centripetal acceleration of 40.0 m/s2. what is the radius of curvature of the bend?
The radius of curvature of the bend 53.33 m N
What is curvature's radius?centripetal acceleration of 40.0 m/s2 and speed of 30 m/s
[tex]f = \frac{mv^{2} }{R}[/tex]
so
40.0 m/s2 / 30 m/s
[tex]\frac{40^{2}m }{30}[/tex] = 53.33 m N
The radius of curvature of the bend 53.33 m N
Centripetal acceleration can be calculated using velocity and radius using The formula ac=v2R. Radius is calculated as R=v2ac if velocity and centripetal acceleration are known.The formula for velocity is v=acR The radius of curvature of the bend 1200m/s2The radius of curvature of the spherical mirror is the diameter of the hollow sphere of which it is a part. In other terms, the radius of curvature of a spherical mirror is the distance between its pole and center of curvature.To learn more about curvature's radius refer to:
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what is an example of a supplementary light source that you might bring to a photo shoot as a photographer?
An example of supplementary light source that you might bring to a photo shoot as a photographer is a : separate flashlight.
Why do you need a flashlight?The flash is very important in photography because it acts as a second light source. It fills in areas where the image is underexposed due to the metering mode of camera prioritizing a different part of the frame, such as the sun in the photo below.
Professional photographers use a flash light frequently, although not the pop up flash on the camera. Photographers generally use an off camera strobe. Common reason to use flash unit is low-light indoor environments.
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what is the approximate mass of the most massive stars left on the main sequence of this star cluster?
The approximate mass of a star cluster whose most massive stars left on main-sequence star is RMC 136a1 with the estimated mass of RMC 136a1 is 315 solar masses, a solar mass is equal to the mass of the sun. In general, it takes a very long time for stars to form.
It is also assumed that the stars in the cluster are homogeneous or have properties similar to each other. The amount of time a star stays in a staging or sequencing stage is determined by its mass.
A star cluster is one of two different forms of stellar assemblages that are bound together by the gravitational attraction of their individual members, who are linked together physically by a shared origin.
Therefore, a study of the system by the Hubble Space Telescope found that the cluster is made up of over 200 extremely bright stars. The biggest one was called RMC 136a1. The estimated mass of R136a1 is 315 solar masses, where 1 solar mass equals the solar mass
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Given a force of 100 N and an acceleration of 5 m/s/s, what is the mass of the object?
Now that we know F Is 100 N, or 100 kg*m/S, and an Equals 5 m/s2, let's go on. Consequently, m =1 20 kg. Thus, the object's mass is 20 kg.
How much does a thing weigh?An object's mass is a fundamental characteristic, a quantifiable representation of its inertia, and a fundamental indicator of the volume of substance inside the thing. Mass is such a basic quantity that it is challenging to define in terms of another, which is why definitions of it frequently seem circular.
How can one calculate an object's mass?Use the perfectly match, where m represents mass and v is volume, to determine an object's mass. Therefore, if the volume is 10 bcm and the density of the object equals 500 kilos per cubic meter, the equation would be 500=m/10.
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to calculate the velocity of a wave, you need to know a the number of crests that pass and the time taken. b the distance from one crest to the next. c the distance traveled by a wave crest and the time taken. d the time taken for a wave crest to pass. e the wavelength and the distance traveled by a wave crest.
The answer to this question is c : the distance traveled by a wave crest and the time taken
As velocity is given as
velocity = Distance/ time
Further there is another way,
The wave's velocity equals the product of its wavelength and frequency (number of vibrations per second) and is independent of its intensity.
The formula is shown below:
v = f×λ
Where,
Wave speed in m/s
Frequency in Hz
Wavelength in m
Hence, the formula for calculating wave velocity is f× λ.
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what is the relationship between gauge pressure and true pressure? what is the relationship between gauge pressure and true pressure? gauge pressure is larger than true pressure. gauge pressure is smaller than true pressure.
The relationship between gauge pressure and true pressure is Pg + Patm = Pabs
The pressure that is relative to atmospheric pressure is known as gauge pressure. Gauge pressure is regarded to be positive for pressures above atmospheric pressure and stated to be negative for pressures below atmospheric pressure. Atmospheric pressure is used as the reference point for gauge pressure.
It is possible to define gauge pressure as the difference between absolute pressure and atmospheric pressure.
Pg + Patm = Pabs
A pressure gauge is a device used to measure the pressure exerted by a fluid, which can be liquid or gas, per unit area. This pressure is expressed in terms of Newton per square meter or pounds per square inch. Absolute pressure is denoted as Pabs, atmospheric pressure as Patm, and gauge pressure as Pg.
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Doctor Who is traveling through the vacuum of space at 406.36 m/s in their T.A.R.D.I.S. They slow down to an easy pace of 1,035.99 m/s when they see a galactic turtle flying through the cosmos. If it takes the T.A.R.D.I.S. 6.97 s to slow down, then how far does the T.A.R.D.I.S. travel while slowing down? Round to the hundredths.
The T.A.R.D.I.S. travels 5026.6 m while slowing down.
What is speed?Speed is distance travelled by the object per unit time. Due to having no direction and only having magnitude, speed is a scalar quantity With SI unit meter/second
Initial speed of the Doctor; u = 406.36 m/s .
Final speed of the Doctor; v = 1035.99 m/s.
Time taken = 6.97 s.
So, average speed = ( initial speed + final speed)/2
= (406.36 + 1035.99)/2 m/s.
= 721.175 m/s.
Hence, the T.A.R.D.I.S. travels while slowing down = average speed × time
= 721.175 m/s × 6.97 s.
= 5026.6 m.
Hence, the T.A.R.D.I.S. travels 5026.6 m while slowing down.
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a uniform tin film of alcohol lies on a flat glass plate. when monochromatic light, whose wavelength can be changed, is incident normally, the refected light is a minimum for a wavelngth of 512 nm and a maximum for a wavelength of 635 nm. what is the minimum t hickness of the film
This is also known as the cut and weight method for determining the average thickness of plastic sheets.
The calculator below uses the formula (volume) x (density) = (weight) to calculate the theoretical thickness of a plastic film. "Film" is generally less than 1 mm thick, so the unit is μm. (If it is 1 mm or more, it is called a "sheet.") Generally, the micrometer method (JIS-C-2151) is used. Using a micrometer, measure the specified number of specified points in the width direction and length direction of the film. Film thickness has a significant impact on coating quality and cost. Measuring it and knowing which gauge to use is routine for every coater. Film thickness plays an important role in product quality, process control, and cost control and can be measured by various instruments.
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the motor of a ski boat generates an average power of when the boat is moving at a constant speed of 12 . when the boat is pulling a skier at the same speed, the engine must generate an average power of . what is the tension in the tow rope that is pulling the skier?
The tension in the tow rope that is pulling the skier is 5283.33 N
since we are given the average power of 2.74 × 10^4 W., with a speed of 12 m/s. So, the tension acting on the motor at this point is :
P= T X v
T = P/v =2.74 × 10^4/ 12 =2283.33 N
For the second case, the average power is 9.20 × 10^4 W, so the tension will be :T = P/v = 9.20 × 10^4 /12 = 7666.66
so the tension in the tow rope is : 7666.66 -2283.33 = 5283.33 N
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the motor of a ski boat generates an average power of 2.74 × 10^4 W when the boat is moving at a constant speed of 12 m/s . when the boat is pulling a skier at the same speed, the engine must generate an average power of 9.20 × 10^4 W. what is the tension in the tow rope that is pulling the skier?
a 1.5 m -long fm antenna is oriented parallel to the electric field of an em wave. part a how large must the electric field be to produce a 1.00-mv (rms) voltage between the ends of the antenna? express your answer using two significant figures.
The electric field must be this large, 67*10^-5 Volts / meter, to produce a 1.00mV voltage between the ends of the antenna that is 1.5m long.
It can be considered as an electric property assosicated with each point in the space where a charge is present in any form. Electric field is by definition the force per unit charge, so that multiplying the field times the plate separation gives the work per unit charge, which is by definition the change in voltage.
How to calculate how large must the electric field?
Electric field = Voltage / length
= 1 x 10^-3 volts / 1.5 meters
= 67 * 10^-5 Volts / meters (rounded)
The electric field should be this large 67*10^-5 Volts / meter to produce 1mV voltage between the ends of the antenna that is 1.5m long.
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The schroedinger wave equation relates the energy of an atom to its electrons in terms of the.
The Schrödinger wave equation relates the energy of an atom to its electrons in terms of the wave function.
What is the Schrödinger wave equation?The Schrödinger wave equation is a partial differential equation that governs the wave function of a quantum-mechanical system. Schrödinger's model of the atom assumed the electrons could be treated at matter waves. The Schrödinger equation is conceptually the quantum counterpart of Newton's second law in classical mechanics.
Since electrons are identical to one another, the wave function of an atom with more than one electron must satisfy special conditions. The wave function of a system of identical particles depends on the coordinates of all the particles. The wave function must remain unaltered or at most undergo a change of sign if the coordinates of two of the particles are interchanged.
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a refrigerator delivers 81 j of energy into the kitchen during a typical period of operation. if the coefficient of performance is 11, calculate the energy extracted from inside the refrigerator during the same time period.
The energy extracted from inside the refrigerator during the same time period is 74.25 J.
Energy is the quantitative belongings this is transferred to a frame or to a physical device, recognizable within the overall performance of labor and in the form of warmth and mild. energy is a conserved amount, the law of conservation of electricity states that electricity may be transformed in shape, however no longer created or destroyed.
Calculated:-
The heat is delivered to the kitchen by the refrigerator = 81 j
The coefficient of performance of the refrigerator = 11
The heat extracted from inside the refrigerator = ?
The work done by the external agent to remove the heat = W = Qc/c
The heat delivered to the kitchen Qh = Qc + W
Qh = Qc + Qc/c
The heat extracted from inside the refrigerator is Qc = QCH/c+1
= 11 × 81 /11 +1
= 74.25 J
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specular reflection obeys the laws of reflection while diffuse reflection does not. question 18 options: true false
False, In contrast to diffuse reflection, specular reflection violates the laws of reflection. Normal reflections are parallel to the surface of a flat mirror. The law of reflection only applies to flat surfaces. Convex mirrors serve as passenger door mirrors in cars.
The law of reflection states that the angle of incidence & angle of reflection is identical. A smooth finish causes a specular reflection of light. Since incident rays are parallel, reflected rays must also be parallel. Light striking a rough surface causes diffuse reflection.
The two principles governing specular reflection are,
1. At the point of incidence, the incidence angle, the reflected ray, as well as the normal towards the reflecting interface all lie in the very same plane.
2. The angle of incidence and reflection are equal.
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