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Two small spheres A and B are moving towards each other as indicated in the figure. The weights of spheres are WA=9 [lb] and WB=15 [lb]. The velocities of spheres immediately before the impact are vA1=6 [ft/s] and vB1=2 [ft/s]. Knowing that coefficient of restitution is e=0.8.
Find: (a) velocity of sphere A after the impact, vA2 [ft/s], (b) velocity of sphere B after the impact, vB2 [ft/s], and (c) loss of energy during the impact.
The atomic mass of 5626Fe is 55.934939 u, How much kinetic energy will the products of the decay have
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An elevator is able to raise 1000kg to a height of 40m in15s. How much work does the elevator do
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