What happens when a roller coaster car moves down from the top of a hill?

An object, m=1.7 kg, is dropped from a ladder 2 m off the ground. What is the velocity of the object right before its hits the ground?

5. Where would a roller coaster have the greatest potential energy? A. at the top of a hill B. halfway up the hill C. halfway down the hill D. at the bottom of the hill

Two stones are thrown vertically upward from the ground, one with three times the initial speed of the other. Assume free fall. Part A If the faster stone takes 12.0 s to return to the ground, how long will it take the slower stone to return

Explain the process of ionic bond formation between K (potassium, a metal) and Br (bromine, a nonmetal).

Covalent bonds form because most atoms seek to have how many electrons in their most outer shell?

One tuning fork vibrates at 440 Hz, while a second tuning fork vibrates at an unknown frequency. When both tuning forks are sounded simultaneously, you hear a tone that rises and falls three times per second.

A block sliding along a horizontal frictionless surface with speed v collides with a spring and compresses it by 2.0 cm. What will be the compression if the same block collides with the spring at a speed of 2v?

How does work get affected when a object is lifted up instead of using a ramp

Choose the correct statement. a. Usually, when one form of energy is converted to another, no energy is wasted. b. The total amount of energy in the universe is gradually decreasing. c. This statement illustrates the first law of thermodynamics. d.

A 10 cm3 block of paraffin (a type of wax) weighs 0. 085 N. It is carefully submerged in a container of gasoline. One cm3 of gasoline weighs 0.0069 N. a. What is the weight of the gasoline displaced by the paraffin? b.