A steel rod has a coefficient of linear expansion of 11x10-6 /K. If it is 10 cm long at room temp, what will be its length when heated by 100 K

How many neutrons does plutonium -196 with an atomic number of 78.

The force it would take to accelerate an 900-kg car at the rate of 6m/s2

Ahair dryer is basically a duct in which a few layers of electric resistors are placed. a small fan pulls the air in and forces it through the resistors where it is heated. air enters a 1200 w hair dryer at 100 kpa and 22°c and leaves at 47°c. the cross-sectional area of the hair dryer at the exit is 60 cm2. neglecting the power consumed by the fan and the heat losses through the walls of the hair dryer, determine (a) the volume flow rate of air at the inlet and (b) the velocity of the air at the exit.