Explain mechanical and non-mechanical energies.

When astronomers observe the spectra of distant galaxies, they notice that the hydrogen emission lines are shifted noticeably toward the red end of the visual spectrum, a phenomenon called red shift. Red is lowest frequency of visible light.

DustyDevils Company manufactures and sells a line of sewing machines. Demand per period (Q) for a particular model is given by the following relationship: Q = 800 -.5P where P is price.

Lakes and ponds which have limestones or calcium carbonate are affected less by acid rain than those which have granite. This is because ... A) granite solutions are basic and neutralize the acid rain.

Suppose the same amount of heat is applied to two bars. they have the same mass, but experience different changes in temperature. are the specific heat capacities the same for the two bars? explain.

Dehydration is know to

Which of these is the most likely reason why the Steady State Theory of origin of the universe has been rejected?

The formula for calculating power is work divided by time (power = work : time). What are two ways of stating the same relationship? work = power : time, work = power * time, time = work : power, time = work * power, power = work * time

What does newton's first law predict will happen to a person riding in a car that is moving in circular motion?

One of the main reasons steel is used more widely than iron is because it's lighter softer stronger than iron

What is the frequency of a wave with a velocity of 21.2 m/s and a wavelength of 8.3m?