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# What is the total entropy change if a 0.280 efficiency engine takes 3.78e3 j of heat from a 3.50e2 degc reservoir and exhausts it to a 42.4 degc reservoir?   ### Another question on Physics Physics, 21.06.2019 23:50
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Objects a and b are visible in the night sky. six months later they are still visible, but object b shows less parallax than object a. which object is closer? a. a b. b c. you would need to wait another six months in order to figure this out. d. you would need to know the objects' angular diameters in order to figure this out.
What is the total entropy change if a 0.280 efficiency engine takes 3.78e3 j of heat from a 3.50e2 d...
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