What type of potential energy does a roller coaster have? Explain

A train is moving 35 m/s to the east. It speeds up to 42 m/s east over the course of 40 seconds. What was the train's acceleration? O A. 0.175 m/s2 west O B. 5.71 m/s2 east O C. 5.71 m/s2 west O D. 0.175 m/s2 east

A raw egg can be dropped from a third-fl oor window and land on a foam-rubber pad on the ground without breaking. If a 75.0-g egg is dropped from a window located 32.0 m above the ground and a foam-rubber pad that is 15.0 cm thick stops the egg in 9.

Which term describes the number of protons in one atom of an element

4. What is malleability? A) The ability of steel to stretch. B) The ability of steel to be shaped. C) The process of heating steel to induce a change in properties D) A measure of how much work it takes to break a sample of steel

What is thermal energy? A. thermal energy is a measure of a substance specific heat B. thermal energy is the measure of movement of the substances molecules C. thermal energy is the same as the substances temperature D.

What heats up hot chocolate faster? milk or water?

If 3000ft/3 of air crossing an evaporator coil and is cooled from 75F to 55F, what would be the volume of air, in ft/3, exiting the evaporator coil?

Amber moves from her desk to the door in 17 seconds. Her speed changes from rest to 5 m/s. What is Amber's average acceleration?

An initially stationary box of sand is to be pulled across a floor by means of a cable in which the tension should not exceed 1070 N. The coefficient of static friction between the box and the floor is 0.350.

While driving, which of the following principles should be used to keep the appropriate distance between your vehicle and the vehicle in front of you?