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Answers by JackPoint

Answers by JackPoint
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At what cold-reservoir temperature (in ∘C) would a Carnot engine with a hot-reservoir temperature of 420 ∘C have an efficiency of 60 % ?
answered Jun 22, 2021
4 votes
85.7k views
Listen to the audio .
answered Jun 18, 2021
5 votes
67.1k views
Find the midpoint of points A(-6,9) and B(2,3) graphically.​
answered Jun 1, 2021
5 votes
79.3k views
The Cook Corporation has two divisions--East and West. The divisions have the following revenues and expenses: East West Sales $ 595,000 $ 467,500 Variable costs 216,000 266,800 Traceable fixed costs 156,
answered Mar 15, 2021
1 vote
224k views
What is the solution to the system of equations shown on the right? 0 (0, -4) 0 (3,-2) O (2,0) (4, -12)
answered Feb 27, 2021
6 votes
11.4k views
HLEPPPPPP!!!!! Drag each number to show whether or not it is a solution to the inequality shown Inequality: 20 > 5+ 3.0
answered Nov 19, 2020
5 votes
66.5k views
What’s the lowest common multiple of 3 and 5
answered Jun 29, 2020
5 votes
12.8k views
A 55.0 mL aliquot of a 1.50 M solution is diluted to a total volume of 278 mL. A 139 mL portion of that solution is diluted by adding 155 mL of water. What is the final concentration? Assume the volumes
answered Jun 25, 2020
3 votes
28.6k views
The fine detail of Saturn's rings provides evidence that the planet may be: A. young B. millions of years old C. in a state of growing larger
answered May 20, 2020
5 votes
122k views
Bruce has been smoking since he was 15-years-old. his doctor tells him that he needs to quit for his health. bruce tells the doctor, "look, smoking is the only bad thing i do, and besides, you have to
answered Dec 10, 2019
5 votes
112k views
Which U.S. president released a doctrine that stated the United States would no longer allow European powers to colonize the Western Hemisphere?
answered Dec 4, 2019
5 votes
197k views
Occurs when a person has difficulty meeting in a role expectations of a single status. A. role B. role strain C. status D. friends
answered Nov 3, 2019
1 vote
49.2k views
If you want to prepare 5 liters of a 0.35m solution of nh4cl, how many grams of salt
answered Jul 29, 2019
5 votes
122k views
The ratio of pencils to erasers is 4:1. If there are 20 pencils, how many erasers are there???
answered Dec 21, 2018
4 votes
113k views
Which is an example of an element? a.salt (nacl) b.water (h20) c.silver (ag) d.electron (e-) hint?
answered Sep 22, 2018
4 votes
204k views
The league of nations failed to do all of the following after world war 1 except a. Implement a successful mandate system b. Curb fascist dictatorships c. Renounce war as part of foreign policy d. Prevent
answered Aug 22, 2018
0 votes
40.4k views
0.04 divided by 19 plzzzzzzzzzzz
answered Aug 14, 2018
3 votes
205k views
What is the maximum heart rate for a 35 year old
answered Jun 5, 2018
6 votes
141k views
Which word is the largest word regarding to its alphabets?
answered Dec 12, 2017
4 votes
81.2k views
What did the Rus do that led to the eventual influence of the Byzantine Empire on Russia? AThe Rus established a strong trading relationship with Constantinople. B.The Rus first invaded and then ruled
answered Sep 27, 2017
4 votes
174k views
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