Chemistry, 29.11.2021 20:30 allyssaharrisooy50au
Two skaters, at rest and facing each other, push off each other. Their initial velocities and momenta are zero, but their final momenta are not. How can the total initial momentum (which is zero) equal the total final momentum, since both skaters are now moving? (Remember that momentum is a vector.) A. Momentum is not conserved in this case. O B. One skater must be much larger than the other. O C. This is not an isolated system, so the conservation law does not apply O D. The skaters are moving in opposite directions. One momentum is positive and the other negative, so their values add up to zero.
Answers: 3
Chemistry, 22.06.2019 23:40
What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.
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Chemistry, 23.06.2019 04:40
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When does phenolphthalein turn pink? in the presence of a base in the presence of an acid when it is in a neutral solution when it is reacting with a metal
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Two skaters, at rest and facing each other, push off each other. Their initial velocities and moment...
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