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A 5.7kg box is on a frictionless 44° slope and is connected via a massless string over a massless, frictionless pulley to a hanging 1.7kg weight
a. What is the tension in the string if the 5.7kg box is held in place, so that it cannot move?
b. If the box is then released, which way will it move on the slope?
c. What is the tension in the string once the box begins to move?
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An object is 17 mm in front of a converging lens, and the image is 3 mm behind the lens. What is the focal length of the lens? Reply In mm
A pendulum of length 1.5 m is held out to point A. At the vertical position, an overhang effectively cuts the length of the pendulum by an amount equal to 1.09 m. (That is, 1.0 m is no longer free to swing.) How long does this pendulum take for one o..
Differentiate between the following three types of plain carbon steels.
you take a 100 g uniform meter stick and hang 200 g on the 10 cm mark, where should you clamp the meter stick so that it is in balanace
The effects of the spin of the earth
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