A 100 kg roller coaster car is located at the top of a hill where the height is 20 m. What is the velocity when it reaches the bottom of the hill? 5.5 m/s 11.2 m/s 16.7 m/s 19.8 m/s

Select the example that best describes a renewable resource. a. all the houses built in the new neighborhood had natural gas available, which will be used for cooking and heating. b.

What was george washingtons favorite game?

A set of pulleys is used to lift a piano weighing 1,000 newtons. The piano is lifted 3 meters in 120 seconds. How much power was used?

Why does sound move fastest in solid mediums?

If the masses of an object increase and their distance from each other stays the same the force of gravity decreases increases stays the same increases then decreases

Ways that charges can be transferred

A cricketer can throw a ball to a maximum horizontal distance of 100m. How much high above the ground can he throw same ball

What is the relationship between the slope of the position graph of an object and its velocity?

Differeniate between thermal energy and heat

The term that describes the time when the sun's are directly over the equator is: