Physics, 28.03.2021 22:50 matthewquattlebum
A spring is of natural length 5 m and modulus 25 N. Find the thrust in the spring when it is compressed to a length of 1-2 m.
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The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?
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Afisherman notices that his boat is moving up and down periodically, owing to waves on the surface of the water. it takes a time of 2.70 s for the boat to travel from its highest point to its lowest, a total distance of 0.700 m. the fisherman sees that the wave crests are spaced a horizontal distance of 6.50 m apart. a. how fast are the waves traveling? b. what is the amplitude a of each wave?
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A spring is of natural length 5 m and modulus 25 N. Find the thrust in the
spring when it is compre...
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