Answers by Grisgruis
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Answers by Grisgruis

Answers by Grisgruis
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A heat engine has a hot reservoir of 490°C and a cold reservoir of 210°C. What is the efficiency of the engine?
answered May 3, 2018
1 vote
129k views
Sara sold half her comic books and then brought 9 more.She now has 15. a. Write an equation to represent the scenario. Let x=comic book b.How many comic books did she begin with?
answered Apr 27, 2018
5 votes
111k views
Ramses II ruled Egypt for approximately 67 years in the 1200s B.C. Ramses II's government was an example of what type of government?
answered Feb 25, 2018
3 votes
216k views
Use scientific notation to estimate the number of hours in one year
answered Jan 17, 2018
1 vote
186k views
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