lillyholcomb20oxm9dl lillyholcomb20oxm9dl

16-02-2020
Physics

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An automobile use a 75,000 J of chemical energy from Gosselin produce 10,000 J of useful output energy

A.calculator it’s efficiency

B.where does the lost energy go, that part of the input work that doesn’t become useful work?

Respuesta :

16-02-2020

Answer:

A. 13.3% (1d.p)

B.

Explanation:

A. Efficiency can be calculated by dividing useful output by total input and multiply it by 100.

Therefore (10000/75000)x100= 13.333333..%

B. Most of the energy is lost as heat energy.

Answer Link

valeriechung valeriechung

16-02-2020

A. (10000/75000)100%
=13.3%, cor to 3sf

B.prob used to warm up the engine/ lost to atmosphere

Answer Link

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