Physics, 05.01.2020 21:31 jdkrisdaimcc11
Ablock of mass m = 75 kg is hanging on a vertical rope of length l = 12 m. what work is done by the
gravitational force when the block swings to a position where the rope makes an angle θ = 40° with
the vertical?
Answers: 1
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How does an observation about an object differ from an inference about that object
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A20 cm long spring is attached to a wall. the spring stretches to a length of 22 cm when you pull on it with a force of 100 n. what is the spring constant
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An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.
Answers: 1
Ablock of mass m = 75 kg is hanging on a vertical rope of length l = 12 m. what work is done by the<...
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