A cable is wound around the hub of a spool that has a mass of 50 kg and center of gravity at G, and is connected to a block with a mass of 30 kg. It is known that the coefficients of static friction are 0.15 under the spool and 0.2 under the block. Compute the maximum counterclockwise moment of a couple Co that can be applied without disturbing the equilibrium of the system

Which of the following represents an upside-down image? o a. +doo b. -doo c. +mo d.-m

How to tell if a molecule is polar or nonpolar with electronegativity

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.