A pumpkin is sitting on top of a wall that is 20 m tall. The pumpkin has a weight of 15N. What formula will you use to find the gravitational potential energy of the pumpkin? {blank}. Calculate the gravitational potential energy. {blank}

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.