A 15-kg bicycle carrying a 50-kg boy is traveling at a speed of 5 m/s. What is the KE of the bicycle and the boy?

What if the earth were larger? A. The atmosphere would float away. B. The planet would not have enough gravity. C. Gravity would pull too hard on the atmosphere. D. The planet would collapse on itself.

It takes 50 seconds for a wave with a wavelength of 0.2 m to travel past you. What is the frequency of the wave?

Which structure reduces friction between joints?

Physics formula for Celsius to Fahrenheit

What is the tendency of an object to resist a change in motion

What basic form of energy is present in blowing wind?

A wave with a frequency of 30 Hz has a wavelength of 40.5 m. How fast is the wave traveling?

A soccer ball is sitting in the middle of a soccer field during a game. When the referee blows his whistle, one of the players runs toward the ball and kicks it as hard as he can.

A body with v=20m/s changes its speed to 28m/s in 2sec. its acceleration will be

Charge: A piece of plastic has a net charge of + 2.00 μC. How many more protons than electrons does this piece of plastic have? (e = 1.60 * 10-19 C)