Answers by Cesare Polonara
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Answers by Cesare Polonara

Answers by Cesare Polonara
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If the work put into a lever is 25.0 joules and the work done by the lever is 20.0 joules, what is the efficiency of the lever? 100% because energy must be conserved. 80.0% 45.0% 5.0%
answered Apr 9, 2018
4 votes
202k views
In this excerpt, the author recognizes the perceived drawbacks of giving advice through the use of "Though I employ so much of my time in writing to you, I confess I have often my doubts whether it is
answered Mar 11, 2018
5 votes
154k views
Music appreciation. Franz Liszt and Frédéric Chopin met in  A. Paris.   B. Prague.   C. New York.   D. Warsaw.
answered Feb 25, 2018
2 votes
51.3k views
Bicycle travels 1 mile in five minutes. If m represents minutes, what does the expression m/5 represent
answered Jan 25, 2018
2 votes
155k views
What is f(x) = x2 – 8x + 11 written in vertex form
answered Oct 25, 2017
5 votes
72.8k views
Explain two social issues that could lead social injustices
answered Sep 9, 2017
4 votes
221k views
President vowed to send a man to the moon by the end of the 1960s
answered Feb 25, 2017
5 votes
73.2k views
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