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 43 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
Excellent

ryansturges

  • Member
  • Posts: 338
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

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.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Supermassive Black Holes as Engines for Galactic Activity Supermassive Black Holes as Engines for Galactic Activity
Rotary engine operates on the four-stroke cycle but uses a rotor instead of a piston and crankshaft ... Rotary engine operates on the four-stroke cycle but uses a rotor instead of a piston and crankshaft ...
Typical SPOUT connector as used on many Ford engines equipped with distributor ignition (DI). Typical SPOUT connector as used on many Ford engines equipped with distributor ignition (DI).
Shown is the electronic circuit inside a ceramic disc MAP sensor used on many Chrysler engines. The ... Shown is the electronic circuit inside a ceramic disc MAP sensor used on many Chrysler engines. The ...
Efficiency vs. Equity Efficiency vs. Equity
A very light ideal spring stretches by when it is used to hang a 135-N object. What is the ... A very light ideal spring stretches by when it is used to hang a 135-N object. What is the ...
Video: Steps of glucose catabolism

For a complete list of videos, visit our video library