A catapult of pole length 9r throws a watermelon from one end of a pole which rotates about an axis at the other end with angular speed w.
A smaller catapult of pole length r throws another watermelon from one end of a pole
which rotates about an axis at the other end with the same angular speed was the first
catapult.
How does the linear speed of the larger catapult's watermelon Ularge compare with
the smaller catapult's watermelon Usmall ?

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.