PHY 7B Study Guide - Quiz Guide: Dimensionless Quantity, Kinematics
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10 the response explains that momentum is conserved during the pull because the net external force acting on the system is zero and provides the correct relationship between the direction and magnitude of anne"s and mathew"s momentum, mainly ! R 9. 3 same as above but the response contains small mistakes or mathematical inconsistencies such as arguing that ! or ! H 8. 9 while the response states that momentum is conserved, it lacks an explanation or provides an incorrect explanation for why this is the case. Some responses state that momentum is always conserved. While the total momentum in the universe is always conserved, the momentum of a system is only conserved if the net external force acting on the system is zero. However, the response contains the correct magnitude and direction of anne"s and mathew"s momentum. Y 8. 2 same as above however the response contains small inconsistencies such as arguing that or !
