Engineering, 18.10.2019 19:20 jones03riley
The phasor technique makes it pretty easy to combine several sinusoidal functions into a single sinusoidal expression without using trigonometric identities. however, you cannot use the phasor technique in all cases. select the expressions below for which the phasor technique cannot be used to combine the sinusoids into a single expression. check all that apply. view available hint(s) check all that apply. β100sin(10,000t+90β)+40sin(10,100tβ 80β)+80cos(10,000t) 100cos(500t+40β)+50sin(500tβ120β)β1 20cos(500t+60β) 25cos(50t+160β)+15cos(50t+70β) 45sin(2500tβ50β)+20cos(1500t+20β) 75cos(8t+40β)+75sin(8t+10β)β75cos(8 t+160β)
Answers: 2
Engineering, 04.07.2019 18:10
The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false
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Engineering, 04.07.2019 18:10
Fluids at rest possess no flow energy. a)- true b)- false
Answers: 3
Engineering, 04.07.2019 18:20
Find the kinematic pressure of 160kpa. for air, r-287 j/ kg k. and hair al viscosity of air at a temperature of 50Β°c and an absolute (10 points) (b) find the dynamic viscosity of air at 110 Β°c. sutherland constant for air is 111k
Answers: 3
Engineering, 04.07.2019 19:20
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 90Β° elbows in the 6-in pipe, a reduction from the 6-in pipe to the 4-in pipe and four 90Β° 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.
Answers: 1
The phasor technique makes it pretty easy to combine several sinusoidal functions into a single sinu...
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