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# Answer to Question #69900 in Other Physics for Nayeli

Question #69900
A penny is dropped from rest from the top of the Willis Tower in Chicago. Considering that the height of the building is 1400 ft and ignoring air resistance, find the speed of the penny just before the penny strikes the ground.
1
2017-09-04T09:53:06-0400

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Assignment Expert
05.09.17, 17:18

Dear visitor,
please use panel for submitting new questions

Nayeli
05.09.17, 02:15

A ball is thrown downward with an initial speed of 25m/s from the top of a 210 m tall building. At the same time, another ball is thrown upward from ground level with a speed of 25m/s. At what distance from the bottom do the two balls pass each other?

Nayeli
05.09.17, 02:07

A baseball is thrown upward with an initial speed of 35 m/s.
a) What is the maximum height attained by the baseball?
b) What is the total time of flight for the baseball?
c) What is the velocity of the ball at t= 2.0s and t=5.0 s