If ti takes 50 seconds to lift 10 newtons of books to a height of 7 meters, calculate the power required.

Temperature is a physical property that determines the direction of heat flow. True or False

A 5kg ball is dropped from a height of 5m. Neglecting the effects of friction, what is the balls kinetic energy just before it hits the ground? A) 10 J B) 25 J C) 62.5 J D) 245 J

A moving walkway has a speed of 0.5 m/s to the east. A stationary observer sees a man walking on the walkway with a velocity of 0.8 m/s to the east. What is the man's velocity relative to the moving walkway?

What is the speed of a wave that has a frequency of 3100 Hz and a wavelength of 0.012 m?

Which statement describes the motion of a mass on a spring? It exhibits constant velocity motion. It exhibits simple harmonic motion. It exhibits circular motion. It exhibits only upward motion.

How long does it take the moon to go from full-moon phase to new-moon phase

What is the rule of calculation of elastic potential energy?

In 1940, the Tacoma Narrows Bridge across the Puget Sound collapsed. The bridge was a suspension bridge. The wind blowing through the narrows matched the natural frequency of the bridge.

What has more momentum: a sports car moving at 100 mph or a train that is not moving?

What is your mass in kilograms?