You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. Calculate the energy.

What best explains the speed of sound in different states of matter?

Question 2. Joe has an idea to cut a bar magnet in half so that he can have one magnet with a north pole and one magnet with a south pole. What is wrong with this idea? A B. C. D. It is impossible to cut a magnet in half.

You have a device that takes temperature measurements and runs off of solar power. How often it is programmed to take a measurement will affect how much power it uses--more frequent measurements, more power.

If a basketball player runs 15 m in a time of 3 s, what was the runners average velocity?

The relationship between frequency wavelength and speed holds for light waves because

Soul that drains slowly and most likely has a high amount of what?

What sd can friction do to moving objects?

Why is specific heat different for different materials

What must happen for an ion To form

What type of material is inside the holes in an electrical outlet?