Pete is driving down 7th street. he drives 150 meters in 18 seconds. assuming he does not speed up or slow down what is his speed in meters per second? a. 8.3 m/s b. 0.12 m/s c. 132 m/s d. 2,700 m/s

Answers

Answer 1
Answer:

Final answer:

Pete's speed can be calculated using the formula for speed which is distance divided by time. He covers a distance of 150 meters in 18 seconds, resulting in a speed of approximately 8.3 meters per second.

Explanation:

To calculate Pete's speed in meters per second, we can use the formula for speed which is given by distance/time. In this case, the distance that Pete covers is 150 meters, and the time he takes is 18 seconds. So, we divide 150 by 18 to get Pete's speed. When we perform this calculation, we obtain a speed of approximately 8.3 meters per second. Therefore, the correct option is (a) 8.3 m/s.

This equation allows us to calculate the speed for any given distance and time and is an essential component of physics and many real-world situations such as determining travel times, planning routes, and even in sporting events to measure performance.

Learn more about Speed Calculation here:

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Which explains how the Coriolis effect causes air circulation? A.
Air from the equator moves toward the poles slower than the ground below it, so friction causes the air to veer east. In contrast, air from the poles moves toward the equator faster than the ground below it, so friction causes it to veer to the west.

B.
Air from the equator moves toward the poles faster than the ground below it, so friction causes the air to veer west. In contrast, air from the poles moves toward the equator slower than the ground below it, so friction causes it to veer to the east.

C.
Air from the equator moves toward the poles faster than the ground below it, so friction causes the air to veer east. In contrast, air from the poles moves toward the equator slower than the ground below it, so friction causes it to veer to the west.

D.
Air from the poles moves toward the equator faster than the ground below it, so friction causes the air to veer east. In contrast, air from the equator moves toward the poles slower than the ground below it, so friction causes it to veer to the west.

Answers

The Coriolis effect causes air circulation when Air from the equator moves toward the poles slower than the ground below it, so friction causes the air to veer east. In contrast, air from the poles moves toward the equator faster than the ground below it, so friction causes it to veer to the west. The answer is letter A

Answer:

The answer to your question is A. Hope this helped

What does WA mean in Friction?

Answers

I think WA in friction means Water Absorption.

Which of the following is NOT a skill scientists use to learn about the world?

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There are many skills that scientists don't use to learn about the world. 
These skills include playing the harmonica, riding a unicycle, and asking
others to choose from a list and then not telling them what's on the list.

The density of table sugar is 1.59 g/cm3. What is the volume of 7.85 g of sugar?

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(7.85g )/(1.59 (g)/( cm^(3) ) ) = 4.937 cm^(3)

A ray at which angle would produce the most glare? A. 25 degrees B. 59 degrees C. 37 degrees D. 70 degrees

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A ray at which angle would produce the most glare is at 70 degrees. The answer is letter D. the greater the incident of light is, the greater is its index of refraction and thus having greater angle to produce a light ray.

The ray more the incidence ray, the more will be the reflected ray. As angle of incidence is to angle of reflection.

Glare can be defined as the difficulty in seeing the object due to more brightness. The bright light such as the direct sunlight or the reflected sunlight or the headlight at the nighttime.The more the intensity the more will be glare.

Hence, the ray that will produce most glare is 70 degree.





A rigid, 2.50 L bottle contains 0.458 mol He. The pressure of the gas inside the bottle is 1.83 atm. If 0.713 mol Ar is added to the bottle and the pressure increases to 2.05 atm, what is the change in temperature of the gas mixture?The initial temperature of the gas is ______ K.

Answers

These are inert gases, so we can assume they don't react with one another. Because the two gases are also subject to all the same conditions, we can pretend there's only "one" gas, of which we have 0.458+0.713=1.171 moles total. Now we can use PV=nRT to solve for what we want.

The initial temperature and the change in temperature. You can find the initial temperature easily using PV=nRT and the information provided in the question (before Ar is added) and solving for T.

You can use PV=nRT again after Ar is added to solve for T, which will give you the final temperature. The difference between the initial and final temperatures is the change. When you're solving just be careful with the units!
 
SIDE NOTE: If you want to solve for change in temperature right away, you can do it in one step. Rearrange both PV=nRT equations to solve for T, then subtract the first (initial, i) from the second (final, f):

PiVi=niRTi --> Ti=(PiVi)/(niR)
 
PfVf=nfRTf --> Tf=(PfVf)/(nfR)

ΔT=Tf-Ti=(PfVf)/(nfR)-(PiVi)/(niR)=(V/R)(Pf/nf-Pi/ni)

In that last step I just made it easier by factoring out the V/R since V and R are the same for the initial and final conditions.

A rigid, 2.50 L bottle contains 0.458 mol He. The pressure of the gas inside the bottle is 1.83 atm. If 0.713 mol Ar is added to the bottle and the pressure increases to 2.05 atm, what is the change in temperature of the gas mixture?

The initial temperature of the gas is

wrong 137

⇒ 122 K.  correct on E.D.G