When we say the universe is expanding, we mean that:a. Everything in the universe is growing in size. b. The average distance between galaxies is growing with time. c. The universe is getting older.

An electric vehicle starts from rest and accelerates at a rate of 2.1 m/s2 in a straight line until it reaches a speed of 25 m/s. The vehicle then slows at a constant rate of 1.2 m/s2 until it stops. (a) How much time elapses from start to stop

If the frequency of the radio station is 88.1MHz (8.81 •10^7Hz), what is the wavelength of the wave used by the radio station for its broadcast? The answer should have three significant figures

what two exercises could be usef to increase your ability to perform push-ups in a fitness evaluation

Use the concept of potential energy to describe how a covalent bond

The meteorological reports that today will reach a high of 45 F. Your friend from Sweden asks what the temperature will be in degrees Celsius. What value would you report to your friend

I'm having trouble figuring out how to study for my science test, it's based off of everything we've learned but I'm afraid there's some things I misunderstood during the year that will effect me on the test, and suggestions?!!

The air over Earth's surfaces absorbs heat from the materials of Earth. In Section 3 of the experiment, the air over the sand the air over the water because sand water.

Describe the rise and fall of a basketball using the concepts of kinetic energy and potential energy

Another word for character in sports is "sportsmanship." - True False

Assume an 8-kg bowling ball moving at 2m/s bounces off a spring at the same speed that it had before bouncing. What is the momentum of the recoil?