Current can flow through

an electric circuit Inly when the switch is

Which of the following is true about rocks? A. rocks are composed of only one mineral. B. Rocks do not contain any nonmineral matter. C. coal is not considered a true rock. D. most rocks are a mixture of minerals.

What is the electric force acting between two charges of 0.0072 C and - 0.0060 C that are 0.0040 m apart? A. 9.7 10^7 N B. - 9.7 10^7 N C. - 2.4 10^10 N D. 2.4 10^10 N

Two masses, m1 = 27.0 kg and m2 = 50.0 kg, are connected by a rope that hangs over a pulley (as in fig. 10-60). the pulley is a uniform cylinder of radius 0.40 m and mass 4.8 kg. initially m1 is on the ground and m2 rests 2.5 m above the ground.

How far will a freely falling object fall from rest in five seconds? six seconds?

A 28.6-kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 77.3 N and is directed at an angle of 24 ° above the horizontal. Determine the coefficient of kinetic friction.

Thomsonâs experiment is credited with the discovery of which particle?

When you drop a pebble from height h, it reaches the ground with kinetic energy k if there is no air resistance. from what height should you drop it so it will reach the ground with twice as much kinetic energy?

Explain two ways that technology has had a positive impact on the environment and two ways that it has had a negative impact on the environment.

A rockets initially at rest, it steady gains speed at a rate of 10m/s^2 for 4.6s during take off. What was the rocket's top speed?

What do you mean by kintic theory of matter