How simple machines achieve mechanical advantage?

Write a statement about your understanding of how momentum is conserved during a collision

H2O Cl2 NH3 What do all of these compounds have in common? A) They are all ionic. B) They are all covalent. C) They all are positively charged. D) They all are negatively charged.

As a person pushes a box across a floor, the energy from the person's moving arm is transferred to the box, and the box and floor become warm. During this process, energy is

A 7.5 kg block is placed on a table. If it's bottom surface area is 0.6m2 how much pressure does the block exert on the table top?

What are some similarities between electricity and gravity?

Correct unit of speed

Technician A says that for best results, loosen the fastener immediately after spraying it with penetrating oil. Technician B says that rusted fasteners may be loosened by tapping with a hammer. Which technician is correct? a. technician A only b.

A roller coaster track is 3,000 meters long. It takes 100 seconds to travel once around the roller coaster. Is the velocity constant throughout the trip? Explain.

Why does the air pressure inside the tires of a car increase when the car is driven?

If you were to drop a clay ball and a rubber ball of the same mass from the same height, which would have a greater change of momentum after they hit the ground?