in Hooke's law F spring equals K triangle X what does the triangle X stand for

What causes light waves to refract? A) The speed of light is reduced to zero. B) The speed of light remains constant. C) The light is repelled by some materials. D) The speed of light changes from one medium to the next.

A researcher studying the nutritional value of a new candy places a 4.60 g sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.69 ∘ C. If the heat capacity of the calorimeter is 32.

A train approaches a railroad crossing, blowing its whistle the entire time. When does an observer at the crossing hear the lowest frequency of the train's whistle?

Aside from rabbits, what do bobcats eat?

Scientific inquiry incorporates many scientific methods. A) True B) False

How can the same material bend in one situation but break in another

According to Newton's first law of motion, what would happen to a car traveling at a constant velocity of 55 MPH to the west in the absence of an unbalanced force?

The Appalachian mountain range in the Eastern United States was once much taller than the Rocky mountain range in the Western United States.

Describe how lighting is just like you walking across a carpet and getting shocked

You need to raise a heavy block by pulling it with a massless rope. You can either (a) pull the block straight up height h, or (b) pull it up a long, frictionless plane inclined at a 15∘ angle until its height has increased by h.