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If two wavelengths pass a given point each second, and the distance between wave crests is 3m, what is the wave speed?
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Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change Ξ΄pe in the gravitational potential energy and the change Ξ΄ke in the kinetic energy of the stone as it moves from its initial to its final location? options a.Ξ΄pe = 0 j and Ξ΄ke = 0 j b.Ξ΄pe is positive and Ξ΄ke is negative c.Ξ΄pe = 0 j and Ξ΄ke is positive d.Ξ΄pe is negative and Ξ΄ke is positive e.Ξ΄pe = 0 j and Ξ΄ke is negative
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If two wavelengths pass a given point each second, and the distance between wave crests is 3m, what...
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