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2 years ago

What efficiency of a car's engine when heat input is 200,000 joules and waste heat is 150,000 joules?

Physics

1 answer:

Inga [223]2 years ago

5 0

The answer is 25% because 50,000 is 25% of 200,000

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Need help ASAP please and thank you

SashulF [63]

Answer:

Explanation:

Im not sure but I did somthing simalier

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2 years ago

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2 years ago

Which element is likely to be the most reactive? bromine (Br) chlorine (Cl) fluorine (F) iodine (I)

RUDIKE [14]

Answer:

Fluorine is the most reactive element

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3 years ago

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The sun rotates once in 25.05 days. That is 601.2 hours. so the sun's rotational speed is 0.0017 rotations per hour. what is the

Margaret [11]

Answer:

$v=2019.09\ m.s^{-1}$

Explanation:

Given:

time taken by the sun to complete one revolution, $t=601.2\ hr$

radial distance of the sunspot, $r=6.955\times 10^8\ m.s^{-1}$

<u>Therefore, angular speed of rotation of sun:</u>

$\omega=\frac{2\pi}{601.2\times 3600} \ rad.s^{-1}$

<u>Now the tangential velocity of the sunspot can be given by:</u>

$v=r.\omega$

$v=6.955\times 10^8\times \frac{2\pi}{601.2\times 3600}$

$v=2019.09\ m.s^{-1}$

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3 years ago

If you live on the path of a jet stream, will the temperature get hotter or colder?

Evgen [1.6K]

Jet streams are tied to global warming so I’m guessing hotter

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2 years ago