An inflated car tyre is considered to have a constant volume, regardless of any changes in temperature


or pressure. Use the kinetic theory of gases to answer following.


a) How does the air in the tyre exert pressure on the walls of the tyre?


b) Why is the pressure the same at all points on the inside wall of a tyre?


c) What happens to the pressure on the inside walls of the tyre if the temperature of the air increases? Explain your answer.


d) More air is pumped into the tyre whilst the temperature is kept constant until there are twice as many molecules as before. Explain why you would expect the pressure to be doubled

We may be certain that an item is in equilibrium if we know the total force acting on it is zero. This statement is true.

If the sum of the forces acting on an object is zero, then we can say for sure that the object is in equilibrium. This is because the state of equilibrium is defined as the condition in which the net force acting on an object is zero.

When there is no net force acting on an object, it means that the forces acting in opposite directions are balanced and cancel each other out. As a result, the object does not accelerate in any direction, and it remains at rest or continues to move at a constant velocity in a straight line.

However, it is important to note that this only applies to the case of a static equilibrium, where the object is at rest. In the case of dynamic equilibrium, where the object is moving at a constant velocity, the net force acting on the object may not be zero but rather balanced by an equal and opposite force, such as friction.

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The probability that a loaf of bread chosen at random will have a mass of more than 450g is 0.0026 or 0.26%.

The probability that a loaf of bread chosen at random will have a mass of more than 450g is found by first standardizing the random variable, using the standard normal distribution. We can then use the standard normal table or calculator to find the area to the right of the standardized value. The standardized random variable can be found using the formula

Z = (X - μ) / σ,

where X is the given value, μ is the mean, and σ is the standard deviation.

Substituting the given values, we get:

Z = (450 - 400) / 18 = 2.78

Using the standard normal table or calculator, we can find the area to the right of 2.78. This area represents the probability that a loaf of bread chosen at random will have a mass of more than 450g.

Using a standard normal table or calculator, we find that this area is 0.0026 or 0.26%.

Hence, the probability that a loaf of bread chosen at random will have a mass of more than 450g is 0.0026 or 0.26%.

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Answer:

The answer is 144kg to 3s.f

Explanation:

convert cm to m

48/100=0.48

V=L³

V=0.48³

V=0.110592m³

\(density = \frac{mass}{volume} \)

1300=m/0.110592

m=1300×0.110592

M=144Kg o 3s.f

The power output of a marine in basic training that climbs a rope at constant speed is 1230 W

Given-

Force(Fg) = 820N

Height(h) = 12 m

Time consumed(t) = 8 sec

Hence,

Work done =force × displacement

W = Fg × h

W = 820×12

W =9840 J

We know,

Power = W/t

           = 9820/ 8

Therefore, power output is 1230W

A force is an external factor that can change the body's state of rest or motion. It has size and direction. The direction in which the force is applied is called the force direction, and the point at which the force is applied is called the force application point. A spring balance can be used to measure force. His SI unit of force is the Newton (N). Objects can accelerate, decelerate, or change direction in response to forces.

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The predicted frequency of defective calculators can be calculated using the formula:

Predicted Frequency = (Probability of Defect) x (Total Number of Calculators)

In this case, the company claimed a probability of 1% per 1000 calculators. Therefore, the probability of a defective calculator is 0.01 (1% expressed as a decimal).

The total number of calculators tested by Gustavo was 1000.

Substituting these values into the formula, we have:

Predicted Frequency = 0.01 x 1000 = 10

The predicted frequency of defective calculators is 10. This means that, according to the company's claim of a 1% probability, it was expected that out of 1000 calculators, approximately 10 of them would be defective. However, Gustavo found 15 defective calculators, which indicates a slightly higher rate of defects compared to the company's prediction.

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Answer:

Ok let me figure this out

Explanation:

#9 asks what is the relationship between distance and force?

The relationships between the two are of the following: if you have distance you woulnt have force, and if there was no force then there is no distance, the 2 countereact each other and balance the scale

(a) The ω⁻ particle has four possible spin states in a magnetic field.

(b) The ω⁻ particle has four possible spin states in a magnetic field.

(c) The ω⁻ particle does not have three times the charge of a spin -1/2 particle.

(d) The ω⁻ particle does not have three times the mass of a spin -1/2 particle.

(e) None of those choices are correct.

(a) The ω⁻ particle has four possible spin states in a magnetic field. This is because a particle with spin 3/2 can have 2S + 1 possible spin states, where S is the spin quantum number. In this case, S = 3/2, so there are 2(3/2) + 1 = 4 possible spin states.

(b) Similarly, the ω⁻ particle still has four possible spin states in a magnetic field. The number of spin states is determined by the spin quantum number and is independent of the specific particle.

(c) The charge of a particle is unrelated to its spin quantum number. The ω⁻ particle does not have three times the charge of a spin -1/2 particle.

(d) The mass of a particle is also unrelated to its spin quantum number. The ω⁻ particle does not have three times the mass of a spin -1/2 particle.

(e) None of the choices provided are correct. The ω⁻ particle has four possible spin states, but its charge and mass are not directly related to its spin quantum number.

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The period of oscillation of a spider hanging on a silk thread, tapped once every second, is one second.

What is the period of oscillation of a spider hanging on a silk thread when tapped once every second?

The time it takes for one complete up-and-down motion of the spider on the silk thread is called the period of oscillation, denoted by T. We know from the problem statement that the spider has the largest amplitude on its bungee cord when tapped exactly once every second.

If the tapping is done exactly once every second, then the spider is experiencing a periodic force with a frequency of 1 Hz. In this case, the period of oscillation T is equal to the reciprocal of the frequency, which is:

T = 1/f = 1/1 Hz = 1 second

Therefore, the spider completes one full oscillation (i.e., up-and-down motion) every second.

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Hebrews migrated from an area near the persion gulf to the coast of Meridian sea.

Abraham move his people from Ur near the Persian Gulf to the coast of this body of water.

Who were Hebrews?

According to biblical tradition, the Hebrews are peoples descended from Shem, one of Noah's sons, through Eber, the eponymous ancestor, and Abraham. Gen. 7:22 f., reports that the flood destroyed all life except that in Noah's ark; consequently, the whole human family descended from Noah and his sons: Japheth, Ham and Shem. As yet, not all of the names of eponymous ancestors in the family lines can be identified,1 but some probabilities are listed in Chart 6.

From Shem, through Arpachshad and Shelah came Eber, the eponymous ancestor of the Hebrews, and from his descendants through Peleg, Reu, Sereg and Nahor came Terah, the father of Abram and his brothers Nahor and Haran. It becomes clear that if "Hebrews" are descendants of Eber, then others besides those of Abraham's line would be included (see Gen. 10:25-27).

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Answer:

His speed in meters per second was 2. Or, 2 meters per second.

Explanation:

Answer:

The velocity of the crossbow as it recoils is 5 m/s. This can be calculated using the conservation of momentum. The momentum of the system before the bow was triggered is 0 (since the bow is stationary). After launching the bolt, the momentum of the system is (0.10 kg * 25 m/s), so in order for the momentum of the system to remain constant, the crossbow must recoil with a momentum of (5.0 kg * -5 m/s).

An unopened bag of chips expanding as one drives up a mountain is a good example of how volume increases when pressure decreases.

When driving up a mountain, the atmospheric pressure decreases due to the decrease in air density at higher altitudes. As the external pressure decreases, the air inside the bag of chips exerts a higher pressure relative to the lower external pressure.

This pressure difference causes the bag to expand, increasing its volume. Therefore, the volume increases when the pressure decreases in this scenario.

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Answer:

D: Heat from the water moves into the ice

Answer:

D

Explanation:

Because the molecules of a solid is going to separate form each other because of the hotness of the water and then that’s how the ice cubes would melt

The work needed to extend its far is 80.

When an object is moved over a distance by an external force, at least a portion of that force must be applied in the direction of the displacement.

This is known as work in physics. By multiplying the length of the path by the component of the force acting along the path, work can be calculated if the force is constant.

The work W is equal to the force f times the distance d, or W = fd, to mathematically describe this idea. The work is W = fd cos if the force is applied at an angle of to the displacement.

Therefore, The work needed to extend its far is 80.

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Answer: the displacement is 0

Explanation:

Displacement is defined as the difference between the final position and the initial position.

now, one time period is defined as the time that the pendulum needs to do a full cicle (so after one time period, the position of the pendulum returns to the same place) this means that the final position and the initial position is the same, then the displacement is 0.

Streamflow is the flow of water in streams, rivers, and other channels, and is a key component of the water cycle. It's influenced by a variety of factors, including the shape and depth of the riverbed, the gradient of the stream, the size and shape of the channel, and the amount of water flowing through it. The given statement is false.It is affected by many factors.

All of these factors influence the velocity of the streamflow. Riverbed and streamflow relationshipThe velocity of streamflow is primarily influenced by the gradient or slope of the riverbed. A shallow slope will not yield high velocity streamflow, but instead will create a slow-moving, meandering stream with a high potential for sedimentation and erosion. In contrast, a steep gradient will create a fast-moving stream with a higher velocity and more turbulent water. As a result, a steeper slope will produce higher velocity streamflow than a shallower slope, which will produce slower-moving streamflow. Therefore, a riverbed with a shallow slope will not yield high velocity streamflow. The statement is false.

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Answer:

you need to include the units for both axis to be able to answer this

Explanation:

average speed in uniform motion is the slope anywhere on the line but you could always pick 2 points and do it that way and speed is just rise over run

or y2-y1/x2-x1

Pick two points on the line and determine their coordinates.

Determine the difference in y-coordinates of these two points (rise).

Determine the difference in x-coordinates for these two points (run).

Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope).

the second bit i think they are looking for this calculation y = mx + b, where m is the slope and b is the y-intercept (where the line crosses the y axis (the vertical one that has no units

Then use that formula for the last question and put in the x value of 10 and complete the formula to find out what y is

constant non zero acceleration

Answer:

oxygen expanding unjhfyysue hjdbdhdjjhd

Answer:

32 psi to 35 psi.

Explanation:

Normal tire pressure is usually between 32~40 psi(pounds per square inch) when they are cold. So make sure you check your tire pressure after a long stay and usually, you can do it in the early morning.

A softer landing occurs when a falling object bounces from a surface. This is a common occurrence when an object with some degree of elasticity is dropped.

When it strikes a surface, the object's kinetic energy is transformed into potential energy. When it bounces back, some of that potential energy is transformed back into kinetic energy, resulting in a bounceback.A softer landing occurs when a falling object bounces from a surface due to elasticity.

For instance, when a ball is dropped, it hits the ground, and a softer landing occurs when the ball bounces from the ground, causing it to absorb less impact than if it had just hit the ground. Soft landings can happen when a surface is made of a soft or elastic material that can deform and absorb some of the impact, reducing the force of the landing.A ball with more elasticity will bounce higher than a ball with less elasticity.

This is due to the fact that a ball with higher elasticity will rebound with more kinetic energy, resulting in a higher bounce. A softer landing can also occur if the surface that the object lands on is cushioned or padded, such as when a person jumps onto a foam mat.

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Heat is applied to an ice-water mixture to melt the ice. In this process, the internal energy increases. The correct answer is c.

When heat is applied to an ice-water mixture to melt the ice, the temperature remains constant at 0°C until all the ice is melted. During this process, the heat energy is used to break the intermolecular bonds holding the ice molecules together, and the internal energy of the system increases. The energy is absorbed by the ice-water mixture and used to increase the kinetic energy of the water molecules, causing the ice to melt.

No work is done by the ice-water mixture during this process because the volume of the system remains constant. Also, the temperature does not increase because the heat energy is being used to break the intermolecular bonds instead of increasing the kinetic energy of the molecules.

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Answer:

C

Explanation:

the periodic table of elements only consist of elements and all of the elements found in the world

Answer:

D.

Explanation:

Work is done when a force moves its point of application a distance in the direction of that force.

Work = force × distance.

Answer:

they would repel because they have the same charge. Charges that are different will stick together.

Mass is how heavy is an object is

Answer:

false

Explanation:

the energy an object has by virtue of its position is gravitational energy.

the energy which an object possess due to its motion is kinetic energy.

hope it helps !