The original Bridge of Lionsdrawbridge in St. Augustine, Florida, was a roller-bascule design. The bascule, or movable leaf, was opened by rolling along its circular base in response to a horizontal force produced by a motor-driven wormscrew mechanism. a) If it is known that the motor shaft experienced a torque of 575 lb. in while rotating at 1100 rpm during a bridge opening, what was the minimum horsepower required for the motor

1in2 processor chip can be modelled as an isothermal plane wall of silicon, isothermal on both sides. the power input to the bottom of the plane wall, or the processing power of the chip, often called the thermal design power (tdp), is 100w. assume the periphery is adiabatic. the silicon is 400 microns thick. the temperature at the junction, or in this case on the bottom of the isothermal plane wall, is 85°c. what is the top surface temperature, assuming that the only mode of heat transfer is conduction