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A man is to be released from rest on a swing pulled away from the vertical by an angle of 22.1 degree. The two frayed ropes of the swing are 2.75 meter long, and will break if the tension in either of them exceeds 320 N.
(a) Determine the maximum weight the man can have and not break the ropes?
(b) If the man is released at an angle greater than22.1 degree, does the maximum weight increase, decrease, or stay the same?
A 2.5 mol sample of helium gas initially at 300 K and 0.400 atm is compressed isothermally to 1.30 atm. Note down that the helium behaves as an ideal gas.
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When an object is placed 15 cm in front of a thin lens, a virtual image is formed 5.0 cm away from the lens, Calculate the location of the final image
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