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Air is flowing steadily through a cooling section where it is cooled from 30 °C to 15 °C at a rate of 0.25 kg/s. If the average COP of the air-conditioner is 2.8 and the unit cost of electricity is $0.
answered
Nov 22, 2021
Engineering
college
7
votes
88.4k
views
Pls I need help finding out the inequality!
answered
Nov 21, 2021
Mathematics
middle-school
1
vote
203k
views
Complète les phrases en utilisant les pronoms démonstratifs qui conviennent et de/du ou qui/que. Je connais tous mes voisins sauf ________________ habite au troisième étage. Regarde cette photo : _________
answered
Oct 13, 2021
French
high-school
3
votes
174k
views
What is a factor of x2+5x-24
answered
Sep 17, 2021
Mathematics
middle-school
5
votes
63.9k
views
How to solve this? I'm new to it
answered
Sep 12, 2021
Mathematics
middle-school
1
vote
179k
views
How are predation and parasitism similar ? How do they differ
answered
Jul 14, 2021
Biology
high-school
0
votes
76.9k
views
Based on your understanding of etymology and suffixes, which word most likely means "study of wasps"? O A. vespology B. meritocracy C. systematics D. establishmentarianism
answered
May 25, 2021
English
middle-school
6
votes
232k
views
During one year, eight turtles are born into a population. Ten turtles immigrate into the population, but two emigrate to find mates. If the overall population growth is nine turtles, what was the death
answered
Apr 8, 2021
Social Studies
high-school
3
votes
157k
views
PLEASE HURRY!!! a Undefined b Negative c Zero d Positive
answered
Mar 23, 2021
Mathematics
college
3
votes
220k
views
The perimeter of a rectangle is 42 cm. The width is 7 cm less than the length.
answered
Mar 17, 2021
Mathematics
college
1
vote
132k
views
93.46 rounded to the nearest ten
answered
Mar 10, 2021
Mathematics
high-school
5
votes
110k
views
How does the speaker's use of Spanish names for food most affect the tone and meaning of this excerpt? Read the excerpt from Justice Sotomayor's speech "A Latina Judge's Voice For me, a very special part
answered
Jan 18, 2021
English
high-school
1
vote
209k
views
Use the information provided to determine ΔH°rxn for the following reaction: ΔH°f (kJ/mol) 3 Fe2O3(s) + CO(g) → 2 Fe3O4(s) + CO2(g) ΔH°rxn = ? Fe2O3(s) -824 Fe3O4(s) -1118 CO(g) -111 CO2(g) -394
answered
Nov 24, 2020
Chemistry
high-school
6
votes
21.0k
views
Compare and contrast types of group behavior and individual behavior
answered
Oct 12, 2020
Biology
middle-school
2
votes
30.2k
views
The words which should be italicized are _____. I read the chapter, I Fool Pap and Get Away, in The Adventures of Huckleberry Finn. The Adventures of Huckleberry Finn I Fool Pap and Get Away
answered
Dec 19, 2019
English
middle-school
3
votes
62.4k
views
In a ________ culture such as ________, there is a great difference between the power held by the elite and the ordinary citizen.
answered
Apr 2, 2019
Social Studies
high-school
2
votes
8.3k
views
A jar of mayonnaise is shaped like a cylinder. The radius of the jar is 1.5 inches and its height is 7 inches. The mayonnaise sells for $0.08 per cubic inch. What is the cost of the jar of mayonnaise?
answered
Mar 17, 2019
Mathematics
high-school
4
votes
135k
views
Which enlightenment thinker influenced Thomas Jefferson when he wrote the Declaration of Independence
answered
Feb 27, 2019
History
middle-school
3
votes
136k
views
Is the following sentence correct or incorrect? Ella siempre pierde las llaves.
answered
Dec 26, 2018
Spanish
high-school
5
votes
42.6k
views
select the irrational number? A)√9 B)√12 C)√16 D)√20 E)√25 (there should be more than one answer)
answered
Dec 2, 2018
Mathematics
high-school
4
votes
197k
views
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