Magnetic fields are produced by particles that are

(1) moving and charged

(2) moving and neutral

(3) stationary and charged

(4) stationary and neutral

A 60-gallon water heater is initially filled with water at 70°F. Determine how much energy, in Btu, needs to be transferred to the water to raise its temperature to 100°F. Given: The water properties at an average water temperature of 85ºFrho = 62.

According to Newton's first law of motion, what will an object in motion do when no external force acts on it?

A 0.60-kilogram softball initially at rest is hit with a bat. The ball is in contact with the bat for 0.20 second and leaves the bat with a speed of 25 meters per second. What is the magnitude of the average force exerted by the ball on the bat? a.

A rock is thrown vertically upward with a speed of 18.0 m/s from the roof of a building that is 50.0 m above the ground.

How many protons, neutrons, and electrons are in oxygen?

In a vacuum, which of the following statements about terminal velocity must be true? A. Objects have the same terminal velocity that they do when there is air. B. Objects do not have a terminal velocity, since there is no air resistance. C.

Which of the following statements describes an anticyclone? a. It is an area of low pressure. b. It is an area of high pressure. c. It has air masses that meet and rise. d. It moves in the direction of the Earth's rotation.

The hydrocarbon C2H4 is a member of the_series.

Only one force acts on one object. Can the object have 0 acceleration? Can it have 0 velocity?

The law of conservation of energy and describe the energy transformation that occur as you coast down a long hill on a bicycle and then apply the brakes to make the bike stop bottom