In this video, the linear motion of the descending sphere is directly related to the rotational motion of the wheel, and in order to complete our calculations we will need to identify this connection. what is the relationship between the linear acceleration a of the descending sphere and the angular acceleration α of the rotating wheel?

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up

What happens when the vapor pressure of a liquid is equal to the external pressure?