A tractor pulls on a tree for 3 minutes with a force of 100 pounds. The tree does not move. How much work is done?

1000 ft-lbs

3000 ft-lbs

unknown

zero

Why air pollution is a problem? Why does pollution occur? What are the prevention of environmental pollution? Why is it so important to have clean air? hope you can answer hope its not to hard

What are the five major oceans? And what is the square mile for all of the square?

Which of these chemical formulas represents two elements whose atoms have joined together with an ionic bond? A. O2 B. CaO C. NeNe D. MgCa

The gravitational potential energy of a boulder at 100m is 1000J. What is the G. P. E at 50 m, 20m, 1m, 0m?

A jet fighter is coming in to land on an aircrft carrier, flying at a speed f 24 m/s. It comes to rest on the deck of the carrier in just 1.6 s. What was the acceleration the pilot felt during landing.

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.