3 ways in which a force can effect an object

Give two examples of where a permanent magnet might be used?

Refraction occurs when a wave a. enters a new medium at an angle. b. hits a surface through which it cannot pass. c. moves around a barrier. d. interferes with another wave.

Sphere x, of mass 2 kg, is moving to the right at 10m/s. sphere y, of mass 4 kg, is moving to the left at 10m/s. the two spheres collide head-on. the magnitude of the impulse of x on y is:

The current through a wire that is 0.80 m long is 5.0 A. The wire is at right angles to a 0.60 T magnetic field. What is the magnitude of the force on the wire? 0.24 N 2.4 N 24 N 240 N

In which state of matter are particles packed tightly together and stay in fixed positions?

What is Newton's second law of motion?

Which statement is true of a concave lens?

Calculate the power rating of a home appliance (in kilowatts) that uses 8 amps of current when plugged into a 120-volt outlet.

If one newton of force accelerates a block at 1m/s^2. predict what the acceleration would be if we applied twice the force to a very light container with 4 blocks in it

What is the difference between an ordinary piece of iron and iron magnet?