Sound waves cannot travel in

a. steel.

b. air.

c. a vacuum.

d. water. e. sound can travel in all of the above.

Do objects tend to stay moving because of a force called Interia

Why do metals lose electrons and nonmetals gain electrons in the formation of ionic bonds?

What MUST be true about an object's acceleration as it is traveling in the positive direction and slowing down?

To create electromagnetic induction, which of the following has to move? A. a wire B. a magnet C. a transformer D. either a or b

Some make-up removal products suggest shaking the solution before using it. Why would the manufacturers provide this suggestion? A. The solution evaporates easily. B. The solution separates naturally. C.

Two railroad cars, each of mass 6500 kg and traveling 80 km/h in opposite directions, collide head-on and come to rest. how much thermal energy is produced in this collision?

What is a result of using a machine?

A boy rides motorbike with velocity of 20 m/s He accelerates his motorbike to a velocity of 30 m/s for 5 second. Calculate the acceleration produced in the motorbike. [Ams 2ms

How is a star's emission spectrum used to study stars?

A 52.0 kg skateboarder does a trick on a half-pipe. During the trick, he reaches a speed of 8.90 m/s. The radius of the half-pipe ramp is 3.00 meters. What is the minimum centripetal force necessary to keep the skater on the ramp?