What is a normal force?

What is the kinetic energy of a 620.0 kg roller coaster moving with a velocity of 9.00 m/s? A 2,790 J B 5,580 J C 25,100 J D 50,200 J

How does erosion impact our lives

The fact that Voyager 1 continues to speed out of the solar system, even though its rockets have no fuel, is an example of A) Newton's first law of motion B) Newton's second law of motion C) Newton's third law of motion D) the universal law of

What other experiments can you do with bubble gum?

Why does th ground and atmosphere get warm during the day

A bathroom scale is compressed 0.21 in. when a 210 -lb person stands on it. Assuming that the scale behaves like a spring that obeys Hooke's law, how much does someone who compresses the scale 0.06 in.

Explain what happens when a ferromagnetic material is made into a permanent magnet.

You are drawing a branching diagram to show the relationship between Turtles frogs and alligators which two organisms does the diagram indicateas having the most recent common ancestor

Estimate the length of the neptunian year using the fact that the earth is 1.50Ã108km from the sun on average.

Identify one type of electromagnetic energy that has a shorter wave length than green light