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Question1

As standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 7.87 m/s. The stone then falls to the ground that is 16.3 m below the point where the stone leaves your hand. At what speed does the stone impact the ground? How much time is the stone in the air? Overlook air resistance and take g = 9.81 m/s2.

Question2

Experiments carried out on myth busters determined that a magnetic field of 1000 gauss will corrupt magnetic strip on a credit card. Assume a long straight wire carries a current of 3.5 A. how close can a credit card come near that wire without damaging its magnetic data?

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