Engineering, 28.11.2019 05:31 kate9627
Problem 7.7-1 the input to this circuit is the voltage source source voltage v left-parenthesis t right-parenthesis equals 12 cosine left-parenthesis 30 t right-parenthesis v the output is the current i left-parenthesis t right-parenthesis equals upper b sine left-parenthesis 30 t right-parenthesis ma. determine the value of the constant, b, used to describe the output current. b
Answers: 2
Engineering, 04.07.2019 16:10, TheOriginalMeyah
An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)
Answers: 2
Engineering, 04.07.2019 19:20, horsedoggal1234
Consider airflow over a flat plate of length l = 1.5 m under conditions for which transition occurs at le = 0.9 m based on the critical reynolds number, re, e = 5 x 10. evaluating the thermophysical properties of air at 400 k, determine the air velocity. (hint: use the tables to find the properties of air)
Answers: 3
Engineering, 04.07.2019 19:20, diawia
Air at a pressure of 1atm and a temperature of 40 c is in parallel flow over the top surface of a flat plate that is heated to a uniform temperature of 120 c. the plate has a length of 0.40m (in the flow direction) and a width of 0.15m. the reynolds number based on the plate length is 50, 000. what is the rate of heat transfer from the plate to the air? if the free stream velocity of the air is doubled and the pressure is increased to 10 atm what is the rate of heat transfer?
Answers: 2
Problem 7.7-1 the input to this circuit is the voltage source source voltage v left-parenthesis t...
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