How is the nuclear fusion that takes place in the sun different from a chemical reaction? a. it happens at a lower temperature. b. more energy is released for a given mass of fuel. c. more hydrogen is formed. d. the energy input is greater than the energy output.

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.

How will the system respond to a temperature increase?

Which magnetic property best describes a magnet’s ability to act at a distance? magnets are dipolar. magnets attract only certain objects. magnets have magnetic fields. magnets can transfer their properties to certain materials.