Answer:
28km/h
Explanation:
92km = 4 hours
176 - 92 = 84
84km = 3 hours
84/3 = 28
28km/h
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added to the engine minus the waste heat
Explanation:
The amount of work done by a heat engine equals the amount of thermal energy added to the engine minus the waste heat.
Thermodynamics is used to measure the energy changes that accompanies physical and chemical process.
In a system;
Internal energy = Quantity of heat added - Work done on it
internal energy is designated as ΔU
quantity of heat as Q
work done as W
ΔU = Q - W
so W = Q - ΔU
some of the heat added added to the system goes as waste heat as no system is 100% efficient.
the work done on a system goes in as thermal energy, internal energy and waste heat
learn more:
Thermodynamics brainly.com/question/3564634
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Answer: More specifically, the term is typically defined as a period when gross domestic product (GDP) declines for two consecutive quarters. This prevailing line of thought was popularized by economist Julius Shiskin in 1974.
Explanation:
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