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What is momentum? Is momentum a vector or a scalar? Is momentumalways conserved? What is the relationship between momentum andcenter of mass? What is impusle? What are the similarities anddifferences between impulse and work?
A 0.5 kg ball is thrown horizontally towards a wall with a speed of 10 m/s. The initial velocity is chosen to be the positive x -direction for this question. The ball horizontally rebounds back from the wall with a speed of 10 m/s in the negative x -direction. What is momentum of the ball before it hits the wall, p? What is momentum of the ball after it hits the wall, p'? What is the change in momentum of the ball, ฮp? (Give both magnitude and direction for each answer.) Is momentum conserved for the ball?
In a Young's double-slit experiment that uses electrons, the angle that locates the first-order bright fringes is ?A = 2.3 *10^-4 degrees when the magnitude of the electron momentum is pA = 1.2*10^-22 kg ยท m/s. With the same double slit, what momentum magnitude pB is necessary so that an angle of ?B = 6.9*10^-4 degrees locates the first-order bright fringes?