Which single force acts on an object in free fall?

A. Air resistance

B. gravity

C. Friction

D. fluid forces

A man with mass 82 kg runs at a speed of 2.8 ms How much kinetic energy does he have? A. 114.8 B. 221.8 C. 321.4 D. 642.9

Value of g in CGS system

A very long (nearly infinite) wire is made of an insulating material. The wire carries a charge, Q, which is distributed evenly along the entire length of the wire, giving it a uniform linear charge density, lambda.

Regions in a sound wave where particles are farthest apart are called

What is a clean energy source that is an alternative to fossil fuels? a. atomic energy c. petroleum energy b. gravitational energy d. carbonization energy

If the weight is 950 newtons, what is the mass?

You are standing against the wall near a corner of a large building. A friend is standing against the wall that is around the corner from you. You can't see your friend. How is it that you can hear her when she talks to you?

What is general relativity in easy terms?

Temperature and volume are directly or inversely

My Notes A basketball rolls across a classroom floor without slipping, with its center of mass moving at a certain speed. A block of ice of the same mass is set sliding across the floor with the same speed along a parallel line.