Physics, 19.02.2021 19:30, emmaline11
1. Suppose that a log is burning in a fireplace. The log contains chemical energy. Light,
heat, and some sound are given off as the log burns. How does this demonstrate the
law of conservation of energy?
A.
B.
The total amount of energy in the universe changes.
Energy is destroyed.
Energy is created.
Energy is converted from one form to another.
C.
D.
Answers: 3
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In which of the following is positive work done by a person on a suitcase
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The pressure in car tires is often measured in pounds per square inch (lb/in.2), with the recommended pressure being in the range of 25 to 45 lb/in.2. suppose a tire has a pressure of 27.5 lb/in.2 . convert 27.5 lb/in.2 to its equivalent in atmospheres.
Answers: 1
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How do you calculate the gravitational force on a rubber ball which has a mass of 50g
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1. Suppose that a log is burning in a fireplace. The log contains chemical energy. Light,
heat, and...
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