Mechanical waves require a medium to transfer their energy which of the following is a mechanical wave?

surface wave

radio waves

microwaves

light waves

A man uses 560 J of work to push a shopping cart down an aisle that is 15 m long. How much force did he use? A. 13 N B. 37 N C. 56 N D. 8,40 N

If you are sitting in a car traveling at a certain speed and another car is traveling next to you at the same speed, the

The magnitude of the momentum of a car is 13,300 kg-m/s. If it has a speed of 14 m/s what is the mass of the car? O A 950 kg O B. 550 kg O C. 800 kg O D. 1350 kg

Earth is the third planet from the Sun. This placement most affects Earth's unique and conditions.

What is the role of the respiratory system? a. to bring water into the body b. to bring oxygen into the body c. to bring carbon dioxide into the body d. none of the above

Why proton doesnt repll each other in nuclous of an atom?

A boy pulls his toy on a smooth horizontal surface with a rope inclined at 60 degrees to the horizontal. If the effective force pulling the toy along the horizontal surface is 5N, calculate the tension in the rope

How many grams of NO2 are in 3 moles of a nitrogen dioxide? 90.2g 138.2g 160g 0.07g

The method of heat transfer that plays a central role in transferring heat energy within the atmosphere and the ocean is A. convection. B. radiation. C. conduction. D. reflection.

You have arranged that the magnetic field in a particular region of space is due North with a value of 0.0040 T. An electron enters the field traveling to the West with a speed of 9.5 percent of the speed of light.