4. Given that the specific heat of copper is 385J/kg/K and if 81.2J of heat is applied to 17.8g of copper by how much will the temperature of the copper increase?

Figure 9 on page 362 shows various motions of balls. the curved path followed by the yellow ball in b in picture b is result of a) inertia b) centripetal motion c) gravity and horizontal velocity d) linear motion

If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.

Does heating a metal wire increase or decrease its electrical resistance? why?