Physics, 15.04.2021 16:50 chrismed2001
9. An ore cart of mass 1200 kg is rolling at a speed of 10.8 m/s across a flat surface. A crane dumps 496 kg of ore into the cart from directly above it. How fast does the cart
move after being loaded with ore? Assume that frictional forces with the flat surface are negligible.
O 6.9 m/s
O 7.6 m/s
O 4.6 m/s
5.1 m/s
Answers: 1
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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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Asoccer ball of mass 0.43 kg is rolling with velocity < 0, 0, 1.8> m/s, when you kick it. your kick delivers an impulse of magnitude 2.7 nâ·s in the direction. the net force on the rolling ball, due to the air and the grass, is 0.22 n in the direction opposite to the direction of the ball's momentum. using a time step of 0.5 s, find the position of the ball at a time 1.5 s after you kick it, assuming that the ball is at the origin at the moment it is kicked. use the approximation . (express your answer in vector form.) < entry field with incorrect answer 12.97 , entry field with correct answer 00 , entry field with incorrect answer 2.7 > m
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9. An ore cart of mass 1200 kg is rolling at a speed of 10.8 m/s across a flat surface. A crane dump...
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