Which of these waves require a medium to travel through?

Light wave

Microwave

Electromagnetic wave

Sound wave

Two concentric circular loops of wire lie on a tabletop, one inside the other. The inner wire has a diameter of 20.0 cm and carries a clockwise current of 12.0 A, as viewed from above, and the outer wire has a diameter of 30.0 cm.

A crate at rest applies a force of 147 newtons on the floor. If the coefficient of static friction is 0.3, what is the maximum force of friction that resists the movement of the crate?

The work done when a crate weighing 13 N is carried 13 m from one loading dock to the next is? joules.

What property of a solution causes an acid-base indicator to change to different colors? different temperature different amounts of surface tension different levels of hydrogen bonding different concentrations of hydronium ion

A 3.0-kg mass moving in the positive x direction with a speed of 10 m/s collides with a 6.0-kg mass initially at rest. after the collision, the speed of the 3.0-kg mass is 8.

What kind of movement does the heat within the core and mantle directly generate?

Explain why Newton's first law of motion can be difficult to observe in moving objects?

No force is necessary to

A boat has a mass of 4040 kg. Its engines generate a drive force of 4660 N due west, while the wind exerts a force of 880 N due east and the water exerts a resistive force of 1400 N due east. Take west to be the positive direction.

Define the word projectile