8- A rope under tension (20 lb) and the density of the longitudinal rope is (0.003 lb/ft), the velocity of the transverse pulse of the rope is:

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A: We know the relation between electric field and potential is given as. E=-∆V/∆r Here E is electric…

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Q: the same as t

A: solution of above problem is below:

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A: jet of water squirts out horizontally from a hole near the bottom of the tank shown in the figure.…

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Q: the frictional force on the block.

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!