Physics, 03.03.2020 21:59 emmybear103002
A very simple solar engine absorbs heat through a collector. The collector loses some of the heat it absorbs by convection, and the remainder is passed through a heat engine to produce electricity. The heat engine operates with one-half the Carnot efficiency with its low-temperature side at ambient temperatureTb and its high temperature side at the steady-state temperature of the collector, Tc. Rate of heat loss from the collector = k (Tc -Tamb) where T1 is the temperature at which heat enters thesolar collector, and k is the overall heat transfer coefficient;all temperatures are absolute. What collector temperature produces the maximum rate at which work is produced for a given heat flux tothe collector?
Answers: 3
Physics, 21.06.2019 21:50
Apossible explanation for a set of facts that can be tested by further investigation is called
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Physics, 22.06.2019 05:30
Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.
Answers: 1
Physics, 22.06.2019 11:30
Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?
Answers: 3
A very simple solar engine absorbs heat through a collector. The collector loses some of the heat it...
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