How far are you from the lightning stroke

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Reference no: EM1356793

Q. Suppose that you hear a clap of thunder 15.4 s after seeing the associated lightning stroke. The speed of sound waves in air is 343 m/s and the speed of light in air is 3.00 108 m/s. How far are you from the lightning stroke?

Q. A gymnast of mass 66.0 kg hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. Use the value 9.81 for the acceleration of gravity.

1)Calculate the tension in the rope if the gymnast hangs motionless on the rope.

2)Calculate the tension in the rope if the gymnast climbs the rope at a constant rate.

3)Calculate the tension in the rope if the gymnast climbs up the rope with an upward acceleration of magnitude 1.40 m/s^2.

4)Calculate the tension in the rope if the gymnast slides down the rope with a downward acceleration of magnitude 1.40 m/s^2 .

Reference no: EM1356793

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