What is effort force?

Describe the oceans and explain how the water cycle affects the salinity of the ocean

a) The earth travels with an approximate speed of 29.9 km/s (66 900 mi/h) in its journey around the sun. The mass of the earth is 5.98 X 10^24 kg. Find the magnitude of its linear momentum.

An object is dropped from rest from a height of 4.4 107 m above the surface of the Earth. If there is no air resistance, what is its speed when it strikes the Earth?

Two friends whisper at a volume of 20 decibels. Later, they converse at a volume of 40 decibels. How much greater is the energy intensity of the conversation compared to the whisper? A. 20 times B. 10 times C. 1,000 times D. 100 times

Your team of test engineers is to release the parking brake so an 768.0-kg car will roll down a very long 6.1 percent grade in preparation for a crash test at the bottom of the incline. (On a 6.1 percent grade the change in altitude is 6.

A book falls of the table and hits the floor. Is work done? Why?

A person of 83 kg is in an elevator. If the elevator is moving at a speed of 5 m/s, what's the person's kinetic energy? Keep 4 significant figures a 1,004 J b 1,038 c 1,280 J d 980 J e 1,435 J

What two equations can be used to determine the speed of a wave

Which force has an infinite range and is always attractive?

A ramp with a mechanical advantage of 8 lifts objects to a height of 1.5 meters how long is the ramp