Aperson is swimming in a river with a current that has speed vr with respect to the shore. the swimmer first swims downstream (i. e. in the direction of the current) at a constant speed, vs , with respect to the water. the swimmer travels a distance d in a time tout . the swimmer then changes direction to swim upstream (i. e. against the direction of the current) at a constant speed, vs , with respect to the water and returns to her original starting point (located a distance d from her turn-around point) in a time tin . 1) what is tout in terms of vr, vs, and d, as needed?
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Which of the following is an example of motion in two dimensions?
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More solar radiation is absorbed by earth’s surface than by
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Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.
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Physics, 22.06.2019 14:30
In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.
Answers: 1
Aperson is swimming in a river with a current that has speed vr with respect to the shore. the swimm...
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