Which term describes a physical or mental representation of an object or event?

Suppose an automobile has a kinetic energy of 2300 J. When it moves with six times the speed, what will be its kinetic energy? Answer in units of J.

A car drives at a constant speed of 40 miles per hour for 45 minutes. How far does the car travel during that time?

If it were possible to remove gravity and friction, think about what would happen to a football if it were tossed into the air. Which statement best describes the force (s) acting on the football?

In which medium would sound travel the fastest? A) across a room B) in a swimming pool C) through outer space D) through a railroad track

5. Which one of the following statements concerning the net electric charge on an object is true? a) An object with a net negative charge has an excess number of protons. b) The net charge can have any value greater than 1.60  10-19 coulombs.

you often hear people particularly TV announcers talk about "high rate of speed" what do you think they mean according to the specifics of physics definitions what are they really saying

What is the value of x in the equation Ix - 3y = 30, when y = 15?

32. How much work is done pushing an 80 N box 2 m across ue surtout What work is done? a. 40 J c. 160 J b. 20 J d. 240 J

Which is a resource that the National Park Service manages? A. memorials B. wildlife refuges C. ecosystems D. endangered species

Write two examples (mathematical expression) of physical laws that change inversely with the square of the distance.