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Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity
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Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?
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In science and physics what is the standard unit of measure for speed?
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Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?
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A skydiver of mass 80kg jumps from a plane. Taking g=10m/s write down..
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