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Deast7027

Hero Member
Posts: 538

on: Jul 29, 2018

Describe the Carnot cycle.

What will be an ideal response?

Question 2

Estimate the speed of a galaxy that is 10 billion light-years away.

A)

0.1c
B)

0.3c
C)

0.5c
D)

0.7c
E)

0.9c

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johnharpe

Sr. Member
Posts: 338

Reply #1 on: Jul 29, 2018

Answer to Question 1

(1 ) The gas is first expanded isothermally, with the addition of heat.
(2 ) Next the gas expands adiabatically.
(3 ) The gas is compressed at constant temperature, and heat flows out.
(4 ) Finally, the gas is compressed adiabatically.

Answer to Question 2

D

Deast7027

Hero Member
Posts: 538

Reply #2 on: Jul 29, 2018

johnharpe

Sr. Member
Posts: 338

Reply #3 on: Jul 29, 2018

You're welcome

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