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An engine extracts 452.8kJ of heat from the burning of fuel each cycle, but rejects 266.7 kJ of heat (exhaust, friction,etc) during each cycle. What is the thermal efficiency of the engine?
asked
Sep 11, 2020
Physics
college
1
answer
0
votes
13.9k
views
Escoge la opción adecuada para que esta oración sea correcta gramaticalmente. La clase a las dos prefiero pienso prefiere empieza cierra entienden quieres
asked
Jan 11, 2020
Spanish
middle-school
1
answer
4
votes
230k
views
Which sentence is best to use in a letter about an unsatisfactory stay in a hotel
asked
Dec 13, 2019
English
high-school
2
answers
0
votes
219k
views
I REALLY NEED THIS SOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOPER BADLY Write this number to two significant figures in scientific notation. Use the "^" character to indicate the
asked
Nov 8, 2019
Mathematics
middle-school
1
answer
4
votes
231k
views
Suppose that another moon is discovered orbiting Jupiter once 300 days. which of the following values would best estimation of its average distance from Jupiter? A 1.30×10^7 km B 1.30×10^4 km C 1.30×10^6
asked
Mar 17, 2019
Physics
high-school
1
answer
5
votes
210k
views
Some conflict theorists ascribe to the idea that as time and technology move forward, elderly people are left behind and they lose social standing and power. which specific theory does this describe ?
asked
Feb 18, 2019
Social Studies
high-school
1
answer
0
votes
162k
views
What describes the relationship between men and women as expressed in Stanton’s Declaration of Sentiments? A) separate but equal B) master and servant C) a mutually beneficial, if not always peaceful,
asked
Aug 22, 2018
History
high-school
2
answers
3
votes
56.1k
views
Plz help asap. I really need it
asked
Jul 28, 2018
Mathematics
middle-school
2
answers
4
votes
222k
views
What triangle is 3,7,9
asked
Apr 15, 2018
Mathematics
high-school
1
answer
2
votes
45.0k
views
How was the US able to get the Louisiana purchase ?
asked
Apr 14, 2018
History
middle-school
1
answer
5
votes
234k
views
What is a large amount of treasure called that ends with the letter e ?
asked
Mar 3, 2018
Social Studies
college
1
answer
5
votes
81.4k
views
What technique does the poet use to communicate the speaker's critical attitude toward war in \"The Battle of Blenheim\"?. A. The poem depicts the innocence of Kaspar's grandchildren as they play by the
asked
Jun 14, 2017
English
high-school
1
answer
1
vote
174k
views
Sydney is shopping for a new television. The cost of a 32-inch LCD flat screen is $149.95. The cost of 46-inch LED flat screen is $280.04 more. What is the cost of the 46-inch LED flat screen television
asked
May 14, 2017
Mathematics
middle-school
2
answers
1
vote
11.5k
views
The year 1789 is an important date in the history of civilization. because why??
asked
Jan 1, 2015
History
high-school
1
answer
5
votes
185k
views
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