A box moves 10 m horizontally when force F = 20 N is applied at an angle θ=30° degrees. What is the work done on the box by force F during the displacement?

What is a difference between a law and a hypothesis? A. A law describes how two variables affect each other, but a hypothesis only discusses one variable. B.

Find the work done by a force of 20 lbs acting in the direction north 50 degrees west in moving an object 4 feet due west?

2 rocks of the same mass are rolling down a hill at different speeds (one faster than the other). which rick would have more kinetic energy?

How much does force increase if mass is doubled

A rubber ball bounces off of a wall with an initial speed v and reverses its direction so its speed is v right after the bounce.

The best way to prevent heat exhaustion while exercising is to

The highest frequency radio waves are which type?

When a mass is placed on a spring with a spring constant of 15 newtons per meter, the spring is compressed 0.25 meter. How much elastic potential energy is stored in the spring?

Explain why we see the Milky Way as a faint band of light stretching across the sky.

A piece of plastic tape coated with iron oxide is magnet - ized more in some parts than in others. When the tape is moved past a small coil of wire, what happens in the coil? What is a practical application of this?