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how can you tell if an object has elastic properties?
a. if two people pull on it, it maintains its original size and shape.
b. if two people pull on it in opposite directions, it stretches and remains in a new shape.
c. if two people pull on it in opposite directions it stretches. then when they let go it returns to its original size and shape.
d. if two people pull on it in opposite directions, it falls apart.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.