Which statement best defines specific heat? (a) the amount of heat required to increase the temperature of 1 mol of a substance by 1 °c.(b) the amount of heat required to increase the temperature of a specific object, such as a calorimeter, by 1 °c.(c) the amount of heat required to increase the temperature of 1 l of a substance by 1 °c.(d) the amount of heat required to increase the temperature of 1 g of a substance by 1 °c.

What is the rate of change in a objects position?

Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?

Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =