What is the force of a 12 kg rock falling at 9.8m/s/s

A curling stone, with a mass of 20.0 kg, slides across the ice at 1.50 m/s. it collides head on with a stationary 0.160-kg hockey puck. after the collision, the puck's speed is 2.50 m/s. what is the stone's final velocity?

Katie rubs a balloon against her hair. Electrons from her hair travel to the balloon, giving the balloon a negative charge and her hair a positive charge.

How does the central nervous system function similarly to the center to sell seeing you need of a compute

The current supply from generating plants is alternating current. True or false?

What is 679.0034ms=s

Why do people use Earth's motions to determine units of time?

Which of the following could be described as "Energy cannot be created or destroyed, only converted into other forms"? A. Rebound-crumple theorem B. Impulse-momentum theorem C. Law of conservation of energy D. Law of conservation of momentum

Which one of the following statements is true? 1. Burning coal contributes to sulfur aerosols in the stratosphere; these sulfur aerosols have moderated global warming. 2.

A diver on a diving board is undergoing simple harmonic motion. Her mass is 55.0 kg and the period of her motion is 0.800 s. The next diver is a male whose period of simple harmonic oscillation is 1.05 s.

Who was the last person to step on the moon?