Which of the following would have the most potential energy?

A.

a car moving along a flat road at 60 mph

В.

a rollercoaster that is at the bottom of a hill

C.

a ball rolling on a flat surface

D.

a rock sitting on the edge of a cliff

Positive and negative charges are attracted to one another. The phenomenon of static electricity requires a separation of positive and negative charges. Laundry in a clothes dryer often becomes charged with static electricity while drying.

Why do astronauts in orbit in space shuttle seem to float

Teams A and B are in a tug-of-war challenge. Team A wins the challenge. What can be said about Team A? A. The net force was in their direction. B. They exerted a net force of zero. C. The net force was opposite their direction. D.

On the periodic table what is number 54

Which one is a indicator of gas and oil? 1. Salt dome 2. Hydrocarbons 3. Generator 4. Coal

During summer vacation, Juan traveled a total distance of 400 miles. His trip took 8 hours. What was the average speed during his trip?

Where Pabs is absolute pressurePg, is gauge pressure, and Patm is atmospheric pressure. For example, if your tire gauge reads 34 lb/incz (pounds per square inch), then the absolute pressure is ...

The tip of a triangle is held 12.0 cm above the surface of a flat pool of water. A submerged swimmer in the pool sees the tip of the triangle at what distance above the water? Let the indices of refraction nwater = 1.33 and nair = 1.00.

What is a lever used for?

What did the romans build as a step toward environment management