the actual final pressure of the light bulb will be different than calculated in the first question because the glass bulb will expand. what will the final actual gauge pressure be, taking this into account? the volume expansion coefficient for glass is

The total mass of the graduated cylinder and the water for the three measurements would be 120g.

Mass is the physical property of a body which determines its resistance to acceleration when a net force is applied. It is measured in kilograms (kg) or pounds (lbs) and is proportional to the amount of matter the body contains. Mass is an intrinsic property of matter, meaning it cannot be altered by changing the shape, size or temperature of a body. Mass is often confused with weight, which is the measure of the gravitational force on an object, and should not be used interchangeably.

The total mass of the graduated cylinder and the water for the three measurements would depend on the individual masses of each measurement. For example, if the measurements were 10mL, 20mL, and 30mL of water respectively, the total mass of the graduated cylinder and the water would be the sum of the individual masses. Assuming the density of the water is 1g/mL, the total mass of the graduated cylinder and the water for the three measurements would be 40g. If the measurements were 20mL, 40mL, and 60mL of water respectively, the total mass of the graduated cylinder and the water for the three measurements would be 120g.

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The velocity vector of the bird as a function of time 2.4√1+ t².  The velocity and acceleration vectors of the bird as functions of time v = 5.367 m\s

x (t) =[tex]\alpha[/tex] t

dx /dt = [tex]\alpha[/tex]

The x-component is, dx/dt = [tex]\alpha[/tex]

y(t) = 3. 0 m - βt²

dy/dt = - 2βt

The y-component is , dy/dt = -2βt

Now we must compute the bird's velocity vector as a function of time.

vector V = √x² + y²

When we now incorporate the values of the x- and y-components into this equation, we obtain,

Vector V = √x² + y²

                  = √[tex]\alpha[/tex]² +( -2βt )²

                  = √(2.4)² + ( -2 × 1.2 × t)²

                = 2.4 √1 + t²

B.             x'' (t) = 0

                 y''(t) = - 2.4

α =  x'' (t) , y''(t)

        = ( 0 , 2.4 )

C.                 t = 2 sec.

        |v| = √2.4² + ( -2.4 × 2)²

                 v = 5.367 m\s

D. Taking from a

tan θ = - t = -2

t = 2

θ = 360 ° - 63.43

= 297°

2. at this instant , the bird speed is increasing , the bird is turning in vertical axis .

The rate of an object's position change is represented by a velocity vector. A velocity vector's magnitude indicates an object's speed, while the vector's direction indicates its direction. The principles of vector addition can be used to add or subtract velocity vectors. magnitude of a vector's velocity.

Because velocity has magnitude as well as direction, it is a vector quantity. Speed, on the other hand, is a scalar quantity because it only has a magnitude and no direction.

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The frequency is a fundamental property of electromagnetic waves. According to Maxwell, a magnetic field develops when the electric field changes.

A time-varying magnetic field is created by an accelerated charge, which then creates a time-varying electric field.

They can move across the water's surface. The gravitational force over them can control them. Structures on Earth can be shook by them. They are capable of travelling in a hoover. Any electromagnetic wave moves at the same constant speed of light. Other characteristics, like frequency, energy, and wavelength, depend on the kind of wave and the source that is creating it. But the speed doesn't change. It is made up of perpendicular time-varying electric and magnetic fields that are both perpendicular to the direction and to each other.

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11.3 g/cm³ equals to 1130  kg/m³.

The mass of a substance per unit of volume is its density. Density is most frequently represented by the symbol ρ, however Latin letter D may also be used. Density is calculated mathematically by dividing mass by volume.

Given that 11.3 g/cm³.

Know that

1000 grams = 1 kg

1 grams = 1/1000 kg.

100 cm = 1 m

1 cm = 1/100 m.

Therefore, 1 cm³ = (1/100)³ m³

= 1/1000000 m³

Hence, 1  g/cm³ = (1/1000) ÷ (1/1000000)  kg/m³

= 1000000/1000 kg/m³

= 1000 kg/m³.

Hence, 11.3 g/cm³ = (11.3 × 1000) kg/m³

= 1130  kg/m³

Hence, 11.3 g/cm³ equals to 1130  kg/m³.

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To calculate the speed of the satellite, we can use the formula for centripetal force:

F = (mv^2) / r

Where:

F = centripetal force (Newtons)

m = mass of the satellite (kg)

v = velocity of the satellite (m/s)

r = radius of the orbit (m)

We know that the centripetal force is provided by the gravitational force between the satellite and the Earth, and the gravitational force can be calculated using the formula:

F = G(m1m2)/r^2

Where:

G = gravitational constant (6.674 x 10^-11 N*m^2/kg^2)

m1 = mass of the satellite (kg)

m2 = mass of the earth (5.972 x 10^24 kg)

r = distance from the centre of the Earth to the satellite (m)

So we can combine the two equations above to get:

mv^2/r = G(m1m2)/r^2

Now we know that the radius of the orbit is the distance from the centre of the Earth to the satellite, which is (6371 + 575) km = 6946 km, so we can convert it to meters:

r = 6946 x 10^3 m

We also know that the mass of the satellite is 325 kg.

So we can substitute the known values into the equation and solve for v:

v^2 = G(m1m2)/r

v = (G(m1m2)/r)^0.5

v = (6.674 x 10^-11 x (325 x 5.972 x 10^24))^0.5 / (6946 x 10^3)

v = 7.711 x 10^3 m/s

Therefore, the speed of the satellite is 7.711 x 10^3 m/s (rounded to the nearest whole number).

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Answer:

29,800.85 m/s or 2.98 x 10^4

Explanation:

1 mile is 1609.34 Meters

1 year is 31,536,000 seconds

1609.34 x 93,000,000 = radius in meters= 149,668,620,000

2 x pi x r = circumference and or distance traveled

2 x pi x 149,668,620,000

distance traveled / time it takes to travel the distance = speed or velocity

940,395,674,129.84 / 31,556,000 = 29,800.85 m/s or 2.98 x 10^4

The human person and electromagnetic fields both have their benefits and drawbacks. They do present a threat to public health. Power plants produce a tremendous amount of electricity.

When an electrically charged object moves through space, it receives a magnetic force in the magnetic field. The coil becomes magnetised when current passes through the circuit. A straight wire's magnetic field in an electrical circuit is weaker than a coiled wire's magnetic field.

Power plants produce a tremendous amount of electricity, which is then sent across the nation on high-voltage cables. Electromagnetic fields are produced by appliances, power lines, radars used by the military and airports, substations, transformers, computers, and other electrically powered machinery. Scientists have shown that our well-being is actually influenced by the earth's electromagnetic climate. Since there are so many objects in our daily lives that produce electromagnetic fields, it is challenging to avoid them.

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Answer: Parfocal will be the answer.

Explanation:

The ant is moving at a velocity of 0.1325 m/s relative to the surface of the earth.

To find the speed of the ant relative to the surface of the earth, you need to add or subtract the velocities of the various reference frames.

The ant is moving forward at 4 cm/s.

The tray is moving backward at 0.75 m/s.

The boat is moving forward at 20 m/s.

The ocean current is moving backward at 36 km/h.

To convert km/h to m/s, divide by 3.6.

So, the ocean current is moving backward at 10 m/s.

Then, you can use the following vector addition to calculate the final velocity of the ant relative to the surface of the earth:

V_ant = V_ant + V_tray + V_boat + V_current = 4 cm/s - 0.75 m/s + 20 m/s - 10 m/s = 13.25 cm/s (0.1325 m/s)

So the ant is moving at a velocity of 0.1325 m/s relative to the surface of the earth.

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The latitudes that have a surplus of energy that accumulates over an entire year, because more radiation is absorbed from the sun than is emitted by the earth, are the tropical regions. These regions are located near the equator, between the Tropic of Cancer (23.5 degrees North) and the Tropic of Capricorn (23.5 degrees South).

In these latitudes, the sun is directly overhead at least once a year, resulting in high levels of solar radiation being absorbed. The high temperatures and high humidity in these regions also contribute to the Earth's energy balance by increasing the rate at which energy is emitted back into the atmosphere.

The tropical regions also receive more radiation from the sun throughout the year than do regions closer to the poles because the sun's rays are less inclined there, meaning they hit the surface at a more perpendicular angle, increasing the amount of energy absorbed.

This surplus of energy in the tropical regions is the main reason why they are characterized by lush vegetation, high temperatures, and heavy precipitation.

kinetic energy can increase, decrease or stay constant depending on the motion of the object and the forces acting upon it.

Kinetic energy can increase or decrease depending on the motion of an object and the forces acting upon it. If an object is moving and is acted upon by a force that increases its velocity, such as an external force or the force of gravity, the kinetic energy of the object will increase. For example, if a car is pushed from a standstill, its kinetic energy will increase as it moves faster. On the other hand, if an object is moving and is acted upon by an opposing force, such as friction or air resistance, the kinetic energy of the object will decrease as it slows down. For example, if a car is driving on a road with friction and it needs to stop, the kinetic energy of the car will decrease as it slows down. In addition, if an object is moving at a constant velocity, the kinetic energy of the object will also be constant.

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The number of students who are in the class after these changes is 68 when initially the ratio of the number of juniors to the number of seniors is 3:1.

Given initial ratio of juniors to seniors = 3 : 1

The final ratio after 1 junior drops the class and 3 more seniors sign up =

5 : 2.

Let initially the number of juniors = j

The number of seniors = b

Because the ratio of juniors to seniors is 3:1, therefore j = 3s

Finally, we have j-1 juniors because one junior dropped the class and s+3 boys because three more seniors signed up.  

Because the new ratio of juniors to seniors is 5:2, therefore

(j - 1)/(s + 3) = 5/2.

Then 2 x (j-1) = 5 x (s + 3)

2j - 5s = 17

Then  2 x 3s - 5s = 17 such that s = 17

Then j = 3s = 3 x 17 = 51

The number of juniors = 51 and the number of seniors = 17

Hence the total number of students in the class = 51 + 17 = 68

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The independent variables are held constant during an experiment. Hence, option (d) is correct.

In mathematical modelling, statistical modelling, and experimental sciences, there are dependent and independent variables.

Dependent variables get their name because, during an experiment, their values are examined under the assumption or requirement that they are dependent on the values of other variables due to some law or rule (for example, a mathematical function).

In the context of the experiment under consideration, independent variables are those that are not perceived as dependent on any other factors.

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The given statement is false. Schools should ensure rights, accomodation and supportive measures for all the victims whether they have reported the incident or not.

Colleges are required to safeguard the rights of sexual assault victims and make specific concessions. Campus SaVE mandates that establishments offer survivors fair accommodations and safety precautions whether or not they choose to contact law police. Sexual assault and harassment are vices that frequently occur in educational settings. Every school needs to have a process or department in place to handle complaints from those who have been the victims of sexual offenses.

All of a school's activities or programs for teaching fall under this category. This means that regardless of whether the programs are held on school property or elsewhere, Title IX safeguards students in connection with all academic, instructional, extracurricular, sports, and other activities.

In response to the query, schools are required to guarantee specific rights, accommodations, and protective measures for sexual assault victims—and not just in cases when they decide to notify law enforcement.

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The complete question is

Schools must ensure certain rights, accommodations

and protective measures for sexual assault victims

only if they choose to report to law enforcement.

True

False

When air resistance is ignored, the velocity of an object remains constant in the absence of any other forces. This is known as free fall motion and is described by the equation of motion v = v0 + at, where v0 is the initial velocity, a is the acceleration due to gravity (g = 9.8 m/s^2), and t is time.

When air resistance is ignored, the velocity of an object remains constant in the absence of any other forces. This is known as free fall motion and is described by the equation of motion v = v0 + at, where v0 is the initial velocity, a is the acceleration due to gravity (g = 9.8 m/s^2), and t is time. If an object is dropped from a height, its velocity will increase with time until it reaches its maximum velocity at the point of impact with the ground. The velocity will remain constant in the absence of air resistance and other forces, such as friction, which can cause the velocity to decrease. In real-world scenarios, air resistance is a significant force that must be taken into account when calculating the motion of an object, especially at high speeds.

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If the mass of meter rule is given then the ans is  50cm automatically cuz thats the point when the mass of the meter rule adds up.

Find the position X of the Knife edge​?

Given:

x - the mark on the ruler where the knife edge is

M - mass of the ruler

m - mass of the object attached to the ruler

a - the point where the mass m is attached

L - length of the ruler

Solution

The torque created by the hanging mass and the piece of ruler that is on the side where the mass is attached:

           τ1=X/L M x/2+am

The torque created by the ruler mass on the other side:

            τ2=L-x/L m L-x/2

Equilibrium means that

               τ1=τ2

           x²/2L M+am=(L-X)²/2L M

         x=0.467m

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Answer:

True

Explanation:

Potential energy is zero and maximum at the lowest point, whereas kinetic energy is zero and maximum. The amount of energy is influenced by mass or not.

It is possible to observe kinetic energy, sometimes referred to as the energy of motion, in the motion of objects and subatomic particles. All moving objects and particles contain kinetic energy. A human walking, a baseball soaring through the air, food tumbling off a table, and a charged particle in an electric field are all examples of kinetic energy in operation. One way to compute kinetic energy is as follows: K.E. is defined as the ratio of m/v2, or the square of an object's mass and velocity. If the mass is measured in kilogrammes and the velocity is measured in metres per second, the kinetic energy is expressed as kilogram-meter squared per second squared.

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During the process all IMFs break and the solvent vaporizes.

During the boiling process, the solvent (hexanes) reaches its boiling point (68.73 °C) and vaporizes, meaning it changes from a liquid to a gas. The boiling point of a liquid is the temperature at which its vapor pressure is equal to the atmospheric pressure. The solvent molecules need to gain enough energy to overcome the intermolecular forces (IMFs) between them to change phase from liquid to gas. The process of vaporization requires an input of energy, which is supplied by heat. The heat energy provided causes the solvent molecules to absorb enough energy to overcome the IMFs, and the solvent vaporizes.

IMFs are the forces that hold the molecules of a substance together, and these forces are weaker in gases than in liquids. When the solvent vaporizes, the IMFs between the solvent molecules are broken, and the solvent molecules move freely in the gaseous state. So, in this case, during the boiling process, all IMFs break and the solvent vaporizes.

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I was asked to describe my house by my teacher (how many bedrooms & bathrooms stuff like that).

Physics is the study of the interaction between the fundamental components of the universe and the composition of matter. General relativity is applied to examine everything in the universe, while quantum mechanics is utilized to study incredibly small objects.

Engineering frequently utilizes physics. For instance, the construction of bridges as well as other static structures uses statics, a branch of mechanics. Better music halls and sound control are produced by an understanding of and application of acoustics, just as improved optical systems are produced by an application of optics.

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Answer:

0.18 m/s

Explanation:

Conservation of Momentum Law:  total P before the collision must equal total momentum after the collision.  P = mv

(2.0 kg)(2 m/s) + (20.0 kg)(0 m/s) = (2.0 kg + 20 kg)v

                     before                                  after

4 kg·m/s = (22.0 kg)v

v = (4 kg·m/s) / (22.0 kg)  = 0.18 m/s

In feedback control, the variable being controlled is measured and compared with a target value.

what accuracies do you suggest for each sensor?

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the maximum speed for a car rounding a 125 m curve on a highway under very icy (no friction) conditions if the banking angle is 20.0 is  70.3 km/h.

If a car is driving on a highway with a banking angle of 20.0o and icy (no friction) conditions, the maximum speed it can reach while rounding a 125 m curve is determined by the following calculations:

The maximum centripetal acceleration (a) is equal to the gravitational acceleration (g) multiplied by the sine of the banking angle (θ). In this case, a = g * sin(20.0o) = 9.8 m/s2 * 0.3420201433 = 3.36 m/s2.

The maximum speed (v) is then equal to the square root of the maximum centripetal acceleration (a) multiplied by the radius of the curve (r). In this case, v = √(3.36 m/s2 * 125 m) = 19.6 m/s = 70.3 km/h.

Therefore, the maximum speed a car can reach while rounding a 125 m curve on a highway under very icy (no friction) conditions if the banking angle is 20.0o is 70.3 km/h.

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It is true that a second-magnitude star in Ursa Major is brighter than a fourth-magnitude star in Orion. Hence, the given statement is true.

The star, Sirius is the star with the brightest apparent magnitude as measured on the modern magnitude scale. The star has been assigned a magnitude of −1.5. There are many other objects in the sky that can appear even brighter than the Sirius star.

So the angle between the northern horizon and the northern celestial pole is the same as the angle of latitude. Hence the angle between the northern horizon and the northern celestial pole will be 40 degrees.

The brightest star in the sky according to the ancient magnitude scale is the first-magnitude star. The dimmest star that is visible to the eye is categorized as the sixth magnitude star. Therefore a second-degree star is bright but less bright than a first-magnitude star.

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Electronic stability control system designed to prevent lose control of the vehicle in the high speed and skidding when cornering at high speed.

electronic stability control system or ESC system also called as dynamic stability control or electronic stability program is a computerized technology which increases a vehicle's stability by reducing and detecting loss of traction. ESC is proven to be effective in decreasing roll over crashes and the accident of single vehicle. Vehicles equipped with ESC are   told has 32% lower single-vehicle crashes and 58% lower roll-over crashes that cause in driver injury.

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Test and Collect Data, Select a Better Calibration Laboratory, Remove Bias and Characterize could be three reasonable measures

For any experiment, a need to keep in mind that the data that you collected must be tested or verified which means for the best answer one needs to get the best or clear input that is input in the case of experiments. And collect relevant data only for the output to preside.

The second way could be the workplace or laboratory need to be a calibration Laboratory so the experiments could be conducted without ant external disturbance along with the required equipment to make the work easy and faster.

last but not least one need to select unbiased and characterized types of equipment which reduce the margin of error from the output we are providing

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The speed of a pendulum is highest at the mean point because at this point the pendulum has the greatest potential energy. As the pendulum swings back and forth, potential energy is converted to kinetic energy at the mean point, leading to the highest speed.

The pendulum is at its highest point in its swing and has the most potential energy at the mean position. This potential energy is transformed into kinetic energy, the energy of motion, when it starts to swing downward. The kinetic energy increases with potential energy, increasing speed as a result. Because of this, the mean point is where the pendulum swings at its fastest. In addition, air resistance and friction have a greater impact as the pendulum approaches the extremities of its arc, slowing it down. The pendulum's maximum speed is reached at the mean point in part because of this.

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New traits usually occur in an organism or a population due to random genetic variations or mutations. Thus, the correct option is B.

A mutation is a change in the genetic material that occurs in the DNA  (deoxyribonucleic acid) sequence, either due to the mistakes when the DNA is being copied or as the result of the environmental factors such as UV (Ultraviolet) light and cigarette smoke.

Genetic variations in an organism can arise from the gene variants also called as mutations or from a normal process in which the genetic material is rearranged as a cell is getting ready to undergo division known as genetic recombination. Genetic variations which alter gene activity or the protein function can introduce different traits in an organism or a complete species.

Therefore, the correct option is B.

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The distance of 39.3 kg mass from 536 kg mass will be .0567d to have zero force of attraction.

The force of attraction between any two bodies is inversely proportional to the square of the distance between them and directly proportional to the product of their masses.

If the cannon is fired after being filled with gunpowder, the following situations could occur.

The masses are

m₁ = 313 kg

m₂ = 536 kg

m = 39.3 kg

So as per sum if the distance between m₁ and m₂ is d and distance between m and m₂ is s then

The gravitational force between m₁ and m is equal to gravitational force between m and m₂.

[tex]\frac{G*m\x_{1} *m }{(d-s)\x^{2} } =\frac{G*m\x_{2} *m }{s\x^{2} }[/tex]

⇒ m₁* s² = m₂ * (d-s)²

⇒313s² = 536d² - 1072ds + 536s²

⇒223s² + 536d² - 1072ds = 0

⇒ s = 0.567d

The distance of 39.3 kg mass from 536 kg mass will be .0567d to have zero force of attraction.

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Answer:

When the net force on an object decreases, the object's acceleration decreases.

Explanation:

i know