Engineering, 14.04.2020 17:57 invocx
The system is released from rest with no slack in the cable and with the spring unstretched. Determine the distance S traveled by the 3.0-kg cart before it comes to rest
a. if m approaches zero.
b. if m = 1.8 kg.
Assume no mechanical interference and no friction. The distance s is positive if up the incline, negative if down.
Answers: 2
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In the winter, in order to keep the classroom steadily at 68 f before 10 pm, heating with an average rate of 42,000 btu/hr is provided. assume the outdoor temperature maintains at 32°f, determine the electrical power (kw) required to (a) operate a reversible heat pump (b) operate a real heat pump with a cop (7) of 4.5 and (c) operate an electrical-resistance heater.
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The system is released from rest with no slack in the cable and with the spring unstretched. Determi...
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