Ahollow circular shaft made of 304 stainless steel uniformly tapers from an outer diameter of 3.0 cm to an outer diameter of 4.0 cm over a length of 2 meters. the inner diameter of 1.0 cm is constant over the length of the shaft. the shaft is subjected to an applied torque of 500 nm. determine the maximum shear stress in the shaft.

Write the correct abbreviation for each metric unit

A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.

What system does a dentist chair system use? pneumatic or hydraulic system?