Physics
Physics, 18.02.2020 05:26, calebwoodall6477

An engine draws energy from a hot reservoir with a temperature of 1250 K and exhausts energy into a cold reservoir with a temperature of 378 K. Over the course of one hour, the engine absorbs 1.42 × 10^5 J from the hot reservoir and exhausts 7.5 × 10^4 J into the cold reservoir.

a. What is the power output of this engine?
b. What is the maximum (Carnot) efficiency of a heat engine running between these two reservoirs?
c. What is the actual efficiency of this engine?

answer
Answers: 1
Show answers

Other questions on the subject: Physics

image
Physics, 21.06.2019 17:10, 1hannacarson
Which statement about covalent bonds is true
Answers: 1
continue
image
Physics, 22.06.2019 10:30, markfaerman5408
Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.
Answers: 3
continue
image
Physics, 22.06.2019 15:30, puppy5209
The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?
Answers: 2
continue
image
Physics, 23.06.2019 02:30, bankskry
Which lists the amplitudes of sound waves from these sources in order from greatest to least? busy roadway, kids whispering, average home chainsaw, diesel truck, rustling leaves kids whispering, vacuum cleaner, jet airplane library, conversational speech, music from speaker
Answers: 1
continue
Do you know the correct answer?
An engine draws energy from a hot reservoir with a temperature of 1250 K and exhausts energy into a...

Questions in other subjects:

Konu
Business, 10.03.2020 19:16
Which of the following is an example of an annuity? A) lump-sum payment made to a life insurance company that promises to make a series of equal payments later for some period of t...
Konu
Geography, 10.03.2020 19:16
Oceanic lithosphere thickens away from the mid-ocean ridge primarily due to . A. the addition of new crust due to hot-spot volcanism B. the addition of new crust due to sedimentati...
Konu
English, 10.03.2020 19:16
To receive credit for a course, your overall average must be above...
Konu
Health, 10.03.2020 19:16
Individuals are classified as drinkers if they consume five or more drinks on one occasion, or consume alcohol on five or more days during a given 30-day period....
Konu
Business, 10.03.2020 19:16
Surgery Center is an Outpatient Surgical clan that was profitable for many years but Medicare Cut its reimbursement, as a result, the clinic wants to better understand its cost it...
Konu
Business, 10.03.2020 19:16
Jethroe Co. reported a retained earnings balance of $200,000 at December 1, year 4. In June year 5, Jethroe discovered that merchandise costing $50,000 had not been included in inv...
Konu
History, 10.03.2020 19:16
Describe the effects of the Great Depression on Georgians. Two correct answers. A. Many rural Georgians were so used to poverty due to the state’s poor economy in the late 19...
Konu
Social Studies, 10.03.2020 19:16
There is a strong correlation between the number of firefighters that show up at a fire andthe amount of damage produced by the fire. The size of the fire influences both thenumber...
Konu
Business, 10.03.2020 19:16
One area that is critical to an event facility-rental agreement for the use of a facility, and that can be easily overlooked when negotiating such agreements, is specification of w...
Konu
Mathematics, 10.03.2020 19:16
A farmer is tracking the amount of corn his land is yielding each year. He finds that the function f(x) = −x2 + 20x + 50 models the crops in pounds per acre over x years. Find and...
Other tasks in the category: Physics More task
See results (0)