Which wave, a or b, has lower energy?

a, because it has a higher amplitude
b, because it has a higher amplitude
a, because it has a lower amplitude
b, because it has a lower amplitude

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

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)