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TiliK225 [7]
2 years ago
10

A ball was positioned in the middle of a smooth ramp and allowed to roll

Physics
1 answer:
netineya [11]2 years ago
6 0

Answer:

it is quicker

Explanation:

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In a certain ideal heat engine, 10.00 kJ of heat is withdrawn from the hot source at 273 K and 3.00 kJ of work is generated. Wha
k0ka [10]

Answer:

Temperature of the sink will be 191.1 K

Explanation:

We have given that heat withdrawn form the source = 10 KJ

Work done = 3 KJ

We know that efficiency is given by

\eta =\frac{work\ done}{heat\ withdrawn}=\frac{3}{10}=0.3

Higher temperature is given by T_1=273K

We have to find the lower temperature T_2

We know that efficiency is also given by

1-\frac{T_2}{T_1}=\frac{T_1-T_2}{T_1}

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We know the range of wavelength of the visible spectrum is from 400 nm to 780 nm.





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