A 5000 kg truck is parked on a 7.0∘ slope. how big is the friction force on the truck?

What role does heat play in the formation of convection currents

A car accelerates from 13 m s to 25 m s in 6.0 s. what was its acceleration? how far did it travel in this time? assume constant acceleration.

What is the term for a variable that a scientist adjusts during an experiment

Do you think earths internal processes cause surface features on earth as large as Mount Everest

Seven seconds after a brilliant flash of lightning, thunder shakes the house. approximately how far was the lightning strike from the house?

In a laser, electrical energy is changed to light energy, and a small amount of the energy is wasted as heat. Describe the total amount of the heat in the system (using the conservation of energy).

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?