« previous next »

Author Question: A perfect Carnot engine operates between 350 K and 600 K. The engine delivers 10 kJ of work in each ... (Read 115 times)

saliriagwu

  • Hero Member
  • *****
  • Posts: 537
on: Jul 29, 2018
A perfect Carnot engine operates between 350 K and 600 K. The engine delivers 10 kJ of work in each cycle. How much heat is extracted from the 600 K reservoir in one cycle?
 
  A)
 
  34 kJ
 
  B)
 
  27 kJ
 
  C)
 
  17 kJ
 
  D)
 
  21 kJ
 
  E)
 
  24 kJ

Question 2

A magnifying lens has a focal length of 10 cm. A person has a near point of 25 cm.
 
  (a) What is the magnification of the lens for that person when their eyes are focused at infinity?
  (b) What is the magnification of the lens for that person when their eyes are focused at their near point?
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


janeli

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

(a) 2.5
(b) 3.5


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

A DOHC engine uses a camshaft for the intake valve and a separate camshaft for the exhaust valves in ... A DOHC engine uses a camshaft for the intake valve and a separate camshaft for the exhaust valves in ...
The fuel injectors used on this Honda Civic GX CNG engine are designed to flow gaseous fuel instead ... The fuel injectors used on this Honda Civic GX CNG engine are designed to flow gaseous fuel instead ...
A demonstration engine showing the amount of water that can be circulated through the cooling ... A demonstration engine showing the amount of water that can be circulated through the cooling ...
A typical oil pump mounted in the front cover of the engine that is driven by the crankshaft. A typical oil pump mounted in the front cover of the engine that is driven by the crankshaft.
A single overhead camshaft engine with a timing belt that also rotates the water pump. A single overhead camshaft engine with a timing belt that also rotates the water pump.
After adjusting the valves that are closed, rotate the engine one full rotation until the engine ... After adjusting the valves that are closed, rotate the engine one full rotation until the engine ...
Video: Automated external defibrillator (AED)

For a complete list of videos, visit our video library