The system is released from rest with no slack in the cable and with the spring stretched 240 mm. Determine the distance s traveled by the 4.3-kg cart before it comes to rest (a) if m approaches zero and (b) if m = 2.7 kg. Assume no mechanical interference and no friction. The distance s is positive if up the incline, negative if down

When subject to a steady load (within elastic range) over a long period of time, what is the major difference in material behavoir between steel and plastic?

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.

Determine the stoichiometric and actual air-fuel ratios and the mole flue gas composition for combustion with 15% excess air for raw indiana, pennsylvania raw coal.