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daser333 [38]
3 years ago
6

One of the most efficient heat engines ever built is a coal-fired steam turbine in the Ohio River valley, operating between 1 87

0°C and 430°C.
(a) What is its maximum theoretical efficiency? %

(b) The actual efficiency of the engine is 42.0%. How much mechanical power does the engine deliver if it absorbs 1.30 105 J of energy each second from its hot reservoir?
Physics
1 answer:
k0ka [10]3 years ago
5 0

Answer:The answer

Explanation:

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(B) 2.25cm

<u>Explanation:</u>

Given:

At 40 hours, the height of the bamboo plant is 2.1cm

At 50 hours, the height of the bamboo plant is 2.4cm

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The difference in length from 40 to 50 hours = 2.4 - 2.1cm

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Answer:

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