Physics, 17.08.2019 17:10 smallblueberry
Aball is thrown straight up. what can be said about the sign of work done by the force exerted by gravity while the ball moves up and then down?
a) positive as the ball travels up, and positive as the ball travels down
b) zero as the ball travels up, and zero as the ball travels down
c) negative as the ball travels up, and negative as the ball travels down
d) positive as the ball travels up, and negative as the ball travels down
e) negative 'as the ball travels up, and positive as the ball travels down
Answers: 1
Physics, 22.06.2019 15:30
The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?
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Physics, 22.06.2019 21:00
What do the atoms of elements in the same group have in common? a. they have the same atomic numbers. b. they have the same average atomic masses. c. they have the same number of electron shells. d. they have the same number of electrons in their outermost shells.
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Physics, 22.06.2019 22:50
Which of the following statements correctly describes a transformer?
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Aball is thrown straight up. what can be said about the sign of work done by the force exerted by gr...
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