If a simple machine reduces the strength of a force, what must be increased?

A. the distance that the force moves

B. the work the simple machine performs

C. the speed of the input force

D. the size of the simple machine

Each day, Ted can wax 8 cars or wash 10 cars, and Tom can wax 3 cars or wash 5 cars. What is each man's opportunity cost of washing a car?

Electrons are modeled using a "cloud"around the nucleus because they A) can not be precisely located B) travel at the speed of light C) exists in many places at once D) move in an orbit about the nucleus

A 1190 kg car pulls a 460 kg trailer. The car exerts a horizontal force of 4070 N against the ground in order to accelerate. What force does the car exert on the trailer? Assume an effective friction coefficient of 0.190 for the trailer.

What causes the global air convection current between the equator and the poles?

How do stars go through fusion and why is hydrogen the element that goes through fusion?

Your hair grows at the rate of 0.0330 mm/hr. What is the rate of your hair growth in ft/year?

Proses mendidihnya air. jelaskan!

Is fertilizer a living thing or non living thing?

Which statements about energy are true? A. Energy is only Found in moving objects B. Energy is never created C. Energy can move matter D. Energy is the same as force E. Energy is never destroyed

Which phrase defines gross domestic product (GDP)