Let the voltage v(t) = 6| cos(20nt) be given: v(t) (V)
t(s)
T/2
T
31/2
2T
Calculate the rms value of the voltage.
Vrons = tl=v
V
Determine the average power delivered to a 50 82 resistance.
P=
W
Check

The higher the astm grain size number, the finer the gran is. a)-true b)-false

Brief discuss how the presence of dislocations in crystal structures can be an advantage and a disadvantage to engineer and designers.

Apiping systems consists of 6 m of 6-std type k and 12 m of 4-std type k, both drawn copper tubing. the system conveys ethylene glycol at a rate of 0.013 m3/s. the pressure drop across the system is to be calculated. there are two 90° elbows in the 6-in pipe, a reduction from the 6-in pipe to the 4-in pipe and four 90° elbows in the 4-in pipe. all fittings are soldered (same as flanged) and regular. the inlet and outlet of the system are at the same height.