Answer:
the cell is the smallest unit
Explanation:
Total mass=100+10=110
Total weight=mass×gravitational field strength
=110×10
=1100N
Work done=force×distance
=1100×10
=11000J
<em>Please mark me as brainliest if this helped you!</em>
Answer:
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Explanation:
Answer:
a)η = 69.18 %
b)W= 1210 J
c)P=3967.21 W
Explanation:
Given that
Q₁ = 1749 J
Q₂ = 539 J
From first law of thermodynamics
Q₁ = Q₂ +W
W=Work out put
Q₂=Heat rejected to the cold reservoir
Q₁ =heat absorb by hot reservoir
W= Q₁- Q₂
W= 1210 J
The efficiency given as
![\eta=\dfrac{W}{Q_1}](https://tex.z-dn.net/?f=%5Ceta%3D%5Cdfrac%7BW%7D%7BQ_1%7D)
![\eta=\dfrac{1210}{1749}](https://tex.z-dn.net/?f=%5Ceta%3D%5Cdfrac%7B1210%7D%7B1749%7D)
![\eta=0.6918](https://tex.z-dn.net/?f=%5Ceta%3D0.6918)
η = 69.18 %
We know that rate of work done is known as power
![P=\dfrac{W}{t}](https://tex.z-dn.net/?f=P%3D%5Cdfrac%7BW%7D%7Bt%7D)
![P=\dfrac{1210}{0.305}\ W](https://tex.z-dn.net/?f=P%3D%5Cdfrac%7B1210%7D%7B0.305%7D%5C%20W)
P=3967.21 W
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