which of the following is an example of a compound machine. a. a bicycle chain. b. a coffee mug. c. a paper cutter

What is the earths slant called

a bowling ball rolled with a force of 15N accelerates at a rate of 5 m/sec^2 a second ball rolled with the same force accelerates 4 m/sec^2. what are the mass of the two balls.

What is the source of the energy released in fission and fusion reactions?

Explain how you know that gasoline burning in a car engine is a chemical change.?

Classify statements about the eye as true or false. the cornea is a transparent covering over the eye

Why is copper a pure substance

Over the course of a martian year, what are the ranges of the rms speeds of the co2 molecules.

Why is it important that all scientists use the metric system?.

Whay is moon non-lominous body

How many (whole number of) 91 kg people can safely occupy an elevator that can hold a maximum mass of exactly 1 metric ton? A metric ton is 1.000 * 103 kg. Answer in units of people.