1. When an object moves it acquires

(a) friction

(b) traction

(d) speed

(c) energy of motion

A vehicle should never be parked closer to a fire hydrant than:

The Earth is approximately 150 million kilometers away from the Sun. If light travels at a speed of approximately 300,000 kilometers per second, about how long does it take for light from the Sun to reach the Earth?

A roller coaster is going through a loop with a circular radius of 9.1 meters, how fast must the roller coaster be moving at the top of the loop in order to stay on the track?

Which nation made a colonial claim on Vietnam after World War II? A. Germany B. Britain C. Japan D. France

Mechanical energy is ... A. Found in machinery only B. usually measured at the atomic level C. the sum of the chemical and thermal energy of an object D. the sum of the kinetic and potential energy of an object

What is the spring constant (in n/m) of a spring that stores 100 J of elastic potential energy when it is stretched 5 m?

Assuming 100% efficient energy conversion, how much water stored behind a 50cm high hydroelectric dam would be required to charge a 50 ampere-minute 12 volt battery with 600j of energy stored in it

Institutions that anticipate and recognize significant external forces and modify their strategies and operations will prosper accordingly. True False

A constant force of 2.0 N is used to push a box 4.0 m across the floor. How much work is done?

An object is raised above the ground gaining a certain amount of potential energy. if the same object is raised twice as high, it gains: