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

Author Question: Two ideal Carnot thermodynamic engines have the same efficiency. One operates between 5.0 102 K and ... (Read 97 times)

jjjetplane

  • Hero Member
  • *****
  • Posts: 556
on: Jul 29, 2018
Two ideal Carnot thermodynamic engines have the same efficiency. One operates between 5.0  102 K and 3.0  102 K, and the other between 4.0  102 K and some lower temperature. What is the lower temperature?
 
  A) 200 K
  B) 220 K
  C) 240 K
  D) 260 K
  E) 280 K

Question 2

A string of length 2.5 m is fixed at both ends. When the string vibrates at a frequency of 85 Hz, a standing wave with five loops is formed.
 
  (a) Determine the distance between two adjacent nodes.
  (b) Determine the wavelength of the waves that travel on the string.
  (c) Determine the speed of traveling waves on this string.
  (d) Determine the fundamental frequency of this string.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

pikon

  • Sr. Member
  • ****
  • Posts: 361
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

(a) 0.50 m (b) 1.0 m (c) 85 m/s (d) 17 Hz


jjjetplane

  • Member
  • Posts: 556
Reply 2 on: Jul 29, 2018
Wow, this really help

tandmlomax84

  • Member
  • Posts: 323
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Production efficiency. Production efficiency.
Efficiency vs. Equity Efficiency vs. Equity
Light Vehicle Diesel Engines Light Vehicle Diesel Engines
Production efficiency vs. trophic efficiency Production efficiency vs. trophic efficiency
Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ... Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ...
thermodynamic thermodynamic
Video: Hormonal regulation of pregnancy - weeks 17 through 38

For a complete list of videos, visit our video library