Hydra reproduce by
a. budding
c. regeneration
b. fission
d. sexual reproduction

How much work would a child do while puling a 12-kg wagon a distance of 3m with a 22 n force directed 30 degrees with respect to the horizontal? (a) 82j (b) 52j (c) 109j (d) 95j

F500 j of energy were added to 1 kg of each of these samples, which would experience the least temperature increase?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.