A2-kg wood block is pulled by a string across a rough horizontal floor. the string exerts a tension force of 30 n on the block at an angle of 20º above the horizontal. the block moves at constant speed. if the block is pulled for a distance of 3.0 m, how much work is done by the tension force?
Answers: 3
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Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?
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When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.
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The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island
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Physics, 22.06.2019 09:10
The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island
Answers: 1
A2-kg wood block is pulled by a string across a rough horizontal floor. the string exerts a tension...
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