A) A coil connected to a 250-V, 50-Hz sinusoidal supply takes a current of 10 A at a
phase angle of 30°. Calculate the resistance and inductance of, and the power
taken by the coil.
b) A voltage v = 0.95 sin754t is applied to a series RLC circuit, which has L = 22.0
mH, R = 23.2 k2, and C = 0.30 uF.
(i) What is the impedance and phase angle7 element?

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.