b
Explanation:
body waves is the answer to the question
I really need these points thx a lot
Answer:


Explanation:
Given:
temperature of source reservoir, 
temperature of sink reservoir, 
energy absorbed from the source, 
work done, 
a.
<u>Now change in entropy of the surrounding:</u>

<em>Since heat engine is a device that absorbs heat from a high temperature reservoir and does some work giving out heat in the universe as the byproduct.</em>



b.
<u>We know Carnot efficiency is given as:</u>



<u>Now the Carnot work done:</u>


.......................(1)
c.
From eq. (1) we have the Carnot work, so the difference:



Now, we find:

The answer is "C" because the equator is closest to the sun, because the sun's rays hits the earth surface at the higher angel at the equator and also the sun is directly overhead the equator.
<span>Jun 16, 2012 - Given a temperature of 300 Kelvin, what is the approximate temperature in degrees Celsius? –73°C 27°C 327°C 673°C.</span><span>
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