Physics, 14.07.2019 02:10 austinkellylay
Adense metal sphere is dropped from a 10-meter tower, and at the exact same time an identical metal sphere is thrown horizontally from the same height. if air friction is ignored, which statement below is true?
a. both spheres land at the same time.
b. the thrown sphere lands before the dropped sphere.
c. the dropped sphere lands before the thrown sphere.
d. the horizontal speed of the thrown sphere will determine whether it will land first or not.
Answers: 1
Physics, 21.06.2019 21:40, taylordalton93
This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal. find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?
Answers: 3
Physics, 22.06.2019 10:30, tyw3366812778
Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?
Answers: 3
Adense metal sphere is dropped from a 10-meter tower, and at the exact same time an identical metal...
Mathematics, 22.08.2019 23:30
Mathematics, 22.08.2019 23:30
English, 22.08.2019 23:30