In a pollution control experiment, minute solid particles (typical mass 1 × 10−13 slug) are dropped in air. the terminal speed of the particles is measured to be 0: 2 ft=s. the drag of these particles is given by fd =kv, where v is the instantaneous particle speed. find the value of the constant k. find the time required to reach 99 percent of terminal speed.
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Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.
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Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.
Answers: 2
In a pollution control experiment, minute solid particles (typical mass 1 × 10−13 slug) are dropped...
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