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3 years ago

What happens to the energy put into a machine that does not get used to do useful work?

2 answers:

3 0

"Most gets converted to heat energy" is the one among the following choices given in the question that describes what happens to the energy put into a machine that does not get used to do useful work. The correct option among all the options that are given in the question is the second option or option "B". I hope it helps you.

iris [78.8K]3 years ago

3 0

Answer:

B. most gets converted to heat energy

Explanation:

Let us take the example of a car. Though some formula one cars have 50% efficiency, the efficiency of an internal combustion car varies between 18–20%. Though some formula one cars have 50% efficiency This means that more than 80% of energy is not utilized hence it is wasted. Little energy does get converted to sound. But almost no energy changes to light.

So, most gets converted to heat energy.

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At one instant of time a rocket is traveling in outer space at 2500m/s and is exhausting fuel at a rate of 100 kg/s. If the spee

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Thrust is a reaction force described quantitatively by Newton's third law. When a system expels or accelerates mass in one direction, the accelerated mass will cause a force of equal magnitude but opposite direction on that system. Mathematically can be written as,

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Here,

v = speed of the exhaust gases measured relative to the rocket.

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Ethane and ethanol are isomers.

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How do i calculate the net force of the following question.Plz answer correctly

oee [108]

<h2>Explanation:</h2><h2>force = mass×acceleration</h2>

mass=30 force=50

(a) 50÷30 

<h2>because we don't have acceleration which is known as m/s2 that stands for meter per seconds square . Hope this help pls follow thank you</h2>

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