Physics, 13.02.2020 03:25 jayleneeeee
You are standing in an elevator that is accelerating upward at 1m/s². Which of the following pairs of forces is an action-reaction pair that has to be exactly equal and opposite to each other? A The force of gravity on you and the force that the floor of the elevator exerts on you. B The force that the floor of the elevator exerts on you and the force that you exert on the floor of the elevator. C The force of gravity on you and the force that you exert on the floor of the elevator. D None of these pairs because acceleration requires an unbalanced force.
Answers: 2
Physics, 21.06.2019 16:20
Luke and carrie are driving down a straight section of the interstate at 70 mph in luke's new convertible. carrie is drinking a soda in the passenger seat. when she is done she tosses the bottle straight up in the air, just above the height of the car. what will happen to the bottle if air resistance is neglected? a. the bottle will land in carrie's lap. b. not enough information is given. c. the bottle will land on the interstate in front of the car. d. the bottle will land on the interstate behind the car.
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Physics, 21.06.2019 21:40
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?
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Physics, 21.06.2019 22:00
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You are standing in an elevator that is accelerating upward at 1m/s². Which of the following pairs o...
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