Physics, 14.11.2019 04:31 DesperatforanA
A2.14 kg block resting on a frictionless surface is attached to an ideal spring with spring constant k = 252 nm . the block is pushed to compress the spring by 9.08 cm from its equilibrium position. while the spring is being compressed, find (a) the work done by the spring and (b) the work done by the applied force.
Answers: 2
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Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.
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If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =
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The slope of a velocity time graph over any interval of time gives the during that interval
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Physics, 22.06.2019 12:50
Arunner is jogging at a steady 3.6 km/hr. when the runner is 2.9 km from the finish line, a bird begins flying from the runner to the finish line at 14.4 km/hr (4 times as fast as the runner). when the bird reaches the finish line, it turns around and flies back to the runner. even though the bird is a dodo, we will assume that it occupies only one point in space, i.e., a zero-length bird. how far does the bird travel? (b) after this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. the bird repeats the back and forth trips until the runner reaches the finish line. how far does the bird travel from the beginning? (i.e. include the distance traveled to the first encounter)
Answers: 2
A2.14 kg block resting on a frictionless surface is attached to an ideal spring with spring constant...
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