Julianna blows air into a balloon to inflate it. What can be known about the atoms of the air?

They are close together.

They are moving constantly at high speeds.

They vibrate in place.

They are held together by strong attractions.

Modern wind turbines are larger than they appear, and despite their apparently lazy motion, the speed of the blades tips can be quite high - many times higher than the wind speed. a typical modern turbine has blades 56 m long that spin at 13 rpm.

The two forces f1 and f2 acting at A have a resultant force of Fr = - 100lb. determine the magnitude and coordinate direction angles of f2

A student look at ocean waves coming into the beach. An oceanwavd with more energy will A. Have a greater height B. Have a greater period C. Travel toward the beach faster D. Strike the beach with greater frequency

How much force does it take to accelerate a 50.8 kg person at 3.50 m/s^2?

Select the correct answer. Which statement about forces is true? A. Forces are defined by strength but not direction. B. Forces are defined by direction but not strength. C. Forces are defined by both strength and direction. OD.

How was bohr atomic model similar to Rutherford's model

A rigid container filled with a gas is placed in ice. What will happen to the pressure of the gas? And what will happen to the volume?

A man is sitting on a 20 m height building and his mass is 50 kg. Calculate the mechanical energy.

Which of the following correctly describes which types of waves travel through which types of mediums? A) Transverse waves travel through solids, liquids, and gases.

Niko was hiking in the mountains when he found a spring, or a place where water naturally flows out of the ground. Where did the water in the spring come from? A. It is water that was squeezed out of an igneous rock when the rock changed. B.