Two walls of a house are identical in all respects including the length and the width. the only difference between the two walls is that one is made of 10-cm-thick plywood while the other is made of 25-cm-thick common brick. use appropriate calculations to show which of the walls will lose more heat by conduction in winter to the outside.

If the temperature were raised very high, classically what would we expect the heat capacity per object to be for this one-dimensional system? give a numerical value. chigh t = __ j/k/object (one reason for the discrepancy is that the high-temperature limit assumes that the number of oscillators is large (n > > 1), which is not the case in this tiny system.)

Aquarterback pedals 3.3meters southward and then run 5.7meters northward. whats the distance ? and whats the displacement?

Given the position vector of the particle r(t)=(t+1)i+(t^2−1)j+2t k, find the particle's velocity and acceleration vectors at t=1