What are two ways friction can be useful

You hop on the carousel horse. The attendant flips the switch and you move up and down, around and around. When the ride ends, the attendant again flips the switch.

A force of 40 Newtons is applied to a mass resulting in an acceleration of 8 m/s2What force would need to be applied to this mass to cause an acceleration of 25 m/s2?

Using the rules for significant figures, what do you get when you subtract 15.54 from 508.9538?

What is the UL measurement?

A bumper has a non negligible mass. After a collision with an ideal spring, the spring is compressed to a distance of 90% of the value of its distance when the bumper's mass was negligible. Give a reasonable explanation for this decrease.

What is the name for a star and planets held together by gravity? A. solar system B. galaxy C. black hole D. supernova

When a car turns a corner on a level road, which force provides the necessary centripetal acceleration? 1) gravity 2) normal force 3) air resistance 4) tension 5) friction

Use Newton's universal law of gravitation to explain why gravity is greater on Earth than on Mercury.

What is a magnetic field and how does it interact with magnetic materials?

What is significant about holden sitting on the radiator?