A clothes dryer uses about 9 amps of current from a 240 volt line. How much power does it use?

A radio technician measures the frequency of an AM radio transmitter. The frequency is. What is the frequency in megahertz?

Relative motion can best be defined as A. the motion of an object with a constant velocity. B. the motion of one object as it appears to another object. C. the change in position of an object divided by change in time. D.

How does potential and kinetic energy change in to each other and back again?

A football player runs 20 meters North of a football field, and then 15 meters East. The total motion lasted 15 seconds. What was his average speed

What is the effect on the current in a wire if both the voltage across it and its resistance are doubled?

Explain what happens when a ferromagnetic material is made into a permanent magnet.

You are drawing a branching diagram to show the relationship between Turtles frogs and alligators which two organisms does the diagram indicateas having the most recent common ancestor

Estimate the length of the neptunian year using the fact that the earth is 1.50Ã108km from the sun on average.

Identify one type of electromagnetic energy that has a shorter wave length than green light

Any object with mass exerts a force on any other object with mass. This force is called?