A neutron collides elastically with a helium nucleus (at rest initially) whose mass is four times that of the neutron. The helium nucleus is observed to scatter at an angle ₂ = 52° from the neutron's initial direction. The neutron's initial speed is 50000 m/s. Determine the angle at which the neutron scatters, ₁, measured from its initial direction. 8.92 What is the speed of the neutron after the collision? 50000 x m/s What is the speed of the helium nucleus after the collision? 0.246 × m/s Submit Answer
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- After the ball A hits (or collides with) the ball B, they are both observed to move off at 45° to the x axis,ball A above the x axis and ball B below. So ?′A= 45° and ?′B = −45°.Is the collision elastic? Justify your answerAs part of a carnival game, a ?b=0.528 kgmb=0.528 kg ball is thrown at a stack of 22.8 cm22.8 cm tall, ?o=0.403 kgmo=0.403 kg objects and hits with a perfectly horizontal velocity of ?b,i=11.1 m/s.vb,i=11.1 m/s. Suppose that the ball strikes the topmost object. Immediately after the collision, the ball has a horizontal velocity of ?b,f=3.10 m/svb,f=3.10 m/s in the same direction, the topmost object has an angular velocity of ?o=4.03 rad/sωo=4.03 rad/s about its center of mass, and all the remaining objects are undisturbed. Assume that the ball is not rotating and that the effect of the torque due to gravity during the collision is negligible. If the object's center of mass is located ?=16.0 cmr=16.0 cm below the point where the ball hits, what is the moment of inertia ?oIo of the object about its center of mass? ?o=Io= kg⋅m2kg⋅m2 What is the center of mass velocity ?o,cmvo,cm of the tall object immediately after it is struck?Two shuffleboard disks of equal mass, one orange and the other green, are involved in a perfectly elastic glancing collision. The green disk is initially at rest and is struck by the orange disk moving initially to the right at vOi = 5.80 m/s as in Figure a, shown below. After the collision, the orange disk moves in a direction that makes an angle of ? = 34.0° with the horizontal axis while the green disk makes an angle of ? = 56.0° with this axis as in Figure b. Determine the speed of each disk after the collision.
- A glider (Glider #1) has a mass of 15.2 g and is initially moving at a speed of 19.3 cm/s on a horizontal air track. It then strikes a glider (Glider #2) of mass 28.5 g that is initially at rest. If the collision is perfectly elastic, what is the speed of Glider #2 after the collision? Express the answer in cm/s. 2m1 -(V1æ); Hint: The relevant formula from the eText is: тi+m2 NV ΑΣφ cm/s Submit Request AnswerA grenade (mass = 3 kg), moving horizontally at 60 m/s, explodes into two fragments with masses m1 = 1 kg and m2 = 2 kg. The first fragment, m1, is ejected upwards at an angle of 37º with the horizontal, and the second fragment, m2, is ejected downwards at an angle of 45º. 1. Make a diagram drawing the momentum vectors of the system before and after the explosion. What magnitude is conserved? Write the corresponding vector expression. 2. Find the magnitude of the velocity of the first and second fragments.On a frictionless horizontal air table, puck A (with mass 0.255 kgkg ) is moving toward puck B (with mass 0.367 kgkg ), which is initially at rest. After the collision, puck A has velocity 0.121 m/sm/s to the left, and puck B has velocity 0.655 m/sm/s to the right. What was the speed vAivAiv_Ai of puck A before the collision? Calculate ΔKΔKDeltaK, the change in the total kinetic energy of the system that occurs during the collision.
- A 0.145 kg baseball is pitched at 42 m/s to the right. The batter hits it horizontally to the pitcher at 58 m/s.(Zitzewitz et.al., 2006)A. Find the change in momentum of the ball.B. If the ball and bat are in contact for 4.6x10¯ 4 s, what is the average force duringthe contact?A pendulum of length L = 0.98 m hangs at rest with 2.0 kg bob. The string is of negligible mass. A smaller 0.10 kg mass is traveling to the left at 20.0 m/s and has an elastic collision with the pendulum bob. Assume that positive is to the right. a) What is the velocity of the bob immediately after the elastic collision?As shown in the figure above, Car #1 and Car #2 are sliding across a horizontal frictionless surface. Car #1 overtakes Car #2 and they have a totally elastic collision.er. You know the mass of each car; m1 = 6.81 kg and m2 = 6.13 kg. and initial speed of each car; v1i = 1.50 m/s and v2i = 0.53 m/s. Calculate the total momentum of the cars before the collision. kg m/s Find the speed of both vehicles after the collision in meters per second. vcar = m/s vtruck = m/s