A 5kg ball is attached to a 10m rope. The ball is held at a horizontalangle and allowed to fall freely with a
pendulum-like motion. What is the velocity of the ball when it is at its lowest point

Which process is represented by the pv diagram? a. the isobaric process b. the isovolumetric process c. the isothermal process d. the adiabatic process

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

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.