« 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 173 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?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Rotary Engine Rotary Engine
Oil is sent to the rocker arms on this Chevrolet V-8 engine through the hollow pushrods. The oil ... Oil is sent to the rocker arms on this Chevrolet V-8 engine through the hollow pushrods. The oil ...
White steam is usually an indication of a blown (defective) cylinder head gasket that allows engine ... White steam is usually an indication of a blown (defective) cylinder head gasket that allows engine ...
Double-check for any oil or vacuum leaks after starting the engine. Double-check for any oil or vacuum leaks after starting the engine.
A system absorbs 623 J of heat while doing 457 J of work. What is the value of U? A system absorbs 623 J of heat while doing 457 J of work. What is the value of U?
Lastlings - Perfect World (Official Music Video) Lastlings - Perfect World (Official Music Video)
Video: Coronary Heart Disease Animation

For a complete list of videos, visit our video library