Which transfer of energy does NOT require matter?

What are the two types of simple machines in a corkscrew

Which group of stars has a higher luminosity white dwarfs or giants?

The force that pushes against something traveling through a fluid is called

What is the kinetic energy of a 1 kilogram ball is thrown into the air with an initial velocity of 30m/sec?

How do you confirm your email?

Which example identifies a change in motion that produces acceleration? choices are: 1. a speed skater moving at a constant speed on a straight track 2. a ball moving at a constant speed around a circular track 3.

Which of the following diagnostic procedures uses ultrasound?

Why is it easier to read black text on a white background than to read green text of any light color?

If object A has more mass than object B, does object A contain more matter? Explain.

Describe a beach that was near stormy seas and powerful waves