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Which equation best expresses the first law of thermodynamics, assuming Q is heat, U is internal energy, and W is work? A.ΔW= ΔQ+ ΔU B.ΔW= ΔU − ΔQ C.ΔQ= ΔU+W D.ΔU=Q −W
answered Aug 17, 2018
4 votes
51.8k views
In her poem, "The New Colossus," Emma Lazarus identifies the Statue of Liberty with A. wretchedness. B. a mother. C. the Colossus of Rhodes. D. Old World tyranny.
answered Aug 2, 2018
3 votes
186k views
Solve the following system of equations by substitution and select the correct answer below: 4x − 6y = 28 8x − 4y = 24 (5 points) Question
answered Jun 21, 2018
5 votes
165k views
Kylie has $70 to spend on clothes. She wants to buy a pair of jeans for $30 and spend the rest on t-shirts. Each t-shirt costs $8. Which inequality represents the number of t-shirts she can purchase? (5
answered Apr 30, 2018
3 votes
141k views
Please help, look at image! Show how you got your answer!
answered Apr 28, 2018
2 votes
215k views
parents that are heterozygous for having freakles (dominant) are crossed. which represents the ratio of their offspring
answered Mar 9, 2018
3 votes
35.6k views
During photosynthesis, sugar C6H12O6 is produced from carbon dioxide, water, and sunlight. Which statement BEST explains what happens during photosynthesis? A) Atoms are gained when sugar is formed. B)
answered Nov 29, 2017
0 votes
111k views
Which excerpt from chapter 23 of The Adventures of Huckleberry Finn most clearly illustrates that the duke is someone who does not take responsibility for his actions and would rather blame others if something
answered Mar 7, 2017
3 votes
10.2k views
a house has 3 windows that are polygons with a total of 13 sides. 2 of the windows are the same shape. the third window has one more side than the first 2 windows. what specific shapes are the windows
answered Mar 3, 2017
2 votes
29.3k views
How does the endomembrane system work together with the ribosomes? a. takes proteins out of the cell b. provides a protective covering c. helps to make food d. obtains energy for the cell
answered Jul 26, 2016
5 votes
31.2k views
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