Question 10 unsaved what is temperature? question 10 options: a direct measure of internal kinetic energy the same thing as heat energy a direct measure of external kinetic energy an indirect measure of heat energy the amount of calories in a substance

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?