A man with a mass of 60 kg walks up two flights of stairs in going from the first floor to the third floor (10 meters). Calculate his increase in potential energy

I'm what case are differences isotopes important?

If you drop the apple, what kind of motion will you see?

Suppose you have a 113-kg wooden crate resting on a wood floor. (μk = 0.3 and μs = 0.5). What maximum force (in N) can you exert horizontally on the crate without moving it?

A 24.0-kg block is initially at rest on a horizontal surface. a horizontal force of 73.0 n is required to set the block in motion, after which a horizontal force of 65.0 n is required to keep the block moving with constant speed.

What is the following atmospheric property associated with? weighs more A) heated air B) cooled air

What happens to the inertia of an object of its mass is decreased?

An object has an acceleration of 24 m/s/s. How long would it take the stationary object to reach a velocity of 6.8 m/s?

What is normal distribution in statistics?

Which of the following water samples would be considered acidic

A linearly-polarized electromagnetic (EM) wave has an electric field with amplitude 1000 V/m. You hold a a linear polarizer in front of it and rotate the polarizer so that all of the EM wave is blocked. You then rotate the polarizer 30 degree.