This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A Carnot engine is operated as a heat pump to heat a room in the winter. The heat pump delivers heat ... (Read 148 times)

fbq8i

  • Hero Member
  • *****
  • Posts: 527
on: Jul 29, 2018
A Carnot engine is operated as a heat pump to heat a room in the winter. The heat pump delivers heat to the room at the rate of 34 kJ per second and maintains the room at a temperature of 293 K when the outside temperature is 229 K.
 
  The power requirement for the heat pump under these operating conditions is closest to A) 7500 W.
  B) 6000 W.
  C) 17,000 W.
  D) 13,000 W.
  E) 9600 W.

Question 2

A steel guitar string with a diameter of 0.300 mm and a length of 70.0 cm is stretched by 0.500 mm while being tuned. How much force is needed to stretch the string by this amount? Young's modulus for steel is 2.0  1011 N/m2.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

connor417

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

10.1 N


fbq8i

  • Member
  • Posts: 527
Reply 2 on: Jul 29, 2018
Gracias!

flexer1n1

  • Member
  • Posts: 373
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

A typical distributor-type diesel injection pump showing the pump, lines, and fuel filter. A typical distributor-type diesel injection pump showing the pump, lines, and fuel filter.
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.
The engine is rotated until the timing marks again align indicating that the companion cylinder ... The engine is rotated until the timing marks again align indicating that the companion cylinder ...
A roller cell-type electric fuel pump. A roller cell-type electric fuel pump.
Start the fuel injector cleaning process by bringing the vehicle’s engine up to operating ... Start the fuel injector cleaning process by bringing the vehicle’s engine up to operating ...
You heat 3.952 g of a mixture of Fe3O4 and FeO to form 4.162 g Fe2O3. The mass of oxygen ... You heat 3.952 g of a mixture of Fe3O4 and FeO to form 4.162 g Fe2O3. The mass of oxygen ...
Video: Calvin Cycle Explained!

For a complete list of videos, visit our video library