If an object with the action of a force, is done.
a. stays still, work
c. moves, work<...
Physics, 20.09.2019 18:30 tntaylor862
If an object with the action of a force, is done.
a. stays still, work
c. moves, work
b. moves, no work
d. none of the above.
Answers: 1
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John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?
Answers: 1
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Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.
Answers: 2
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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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