A Carnot engine operates between two reservoirs with unknown ...

[sheilaspns]

A Carnot engine operates between two reservoirs with unknown temperatures. If the Carnot engine operates at 67 efficiency, what is the ratio of the absolute temperatures of the reservoirs, Tc/Th?
 
  A) 0.33
  B) 0.0012
  C) 0.0025
  D) 0.67

Question 2

Two protons are fired toward each other in a particle accelerator, with only the electrostatic force acting. Which of the following statements must be true about them as they move closer together? (There could be more than one correct choice.)
 
  A) Their kinetic energy keeps decreasing.
  B) Their electric potential energy keeps decreasing.
  C) Their electric potential energy keeps increasing.
  D) Their kinetic energy keeps increasing.
  E) Their acceleration keeps decreasing.

[leannegxo]

Answer to Question 1

A

Answer to Question 2

A, C

[sheilaspns]

Both answers were spot on, thank you once again

[leannegxo]

Great! Please up vote