Physics, 10.05.2021 21:00 jaylenmiller437
ANALOGY: As yet another blizzard hits, your favorite 7 grade science teacher cranks up his
snow blower and sets out to clear his sidewalk. Suddenly, he realizes that using the snow blower
is a lot like electricity! He throws away his "shopping cart" analogy and comes up with this
comparison: If the snow blower is electricity, then:
Answers: 3
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Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work
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Select the correct answer. what does the process of natural selection involve?
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What efficiency of a car's engine when heat input is 200,000 joules and waste heat is 150,000 joules? a. 75% b. 35% c. 25% d. 85%
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ANALOGY: As yet another blizzard hits, your favorite 7 grade science teacher cranks up his
snow bl...
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