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, 0₁, 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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- INITIAL: FINAL: M. A white billiard ball with mass mw = 1.53 kg is moving directly to the right with a speed of v = 3.25 m/s and collides elastically with a black billiard ball with the same mass mb = 1.53 kg that is initially at rest. The two collide elastically and the white ball ends up moving at an angle above the horizontal of ew = 51° and the black ball ends up moving at an angle below the horizontal of Ob = 39°. %3D 1) What is the final speed of the white ball? m/s Submit 2) What is the final speed of the black ball? m/s SubmitQ.10. A bullet of mass m = 20 g is fired horizontally into a wooden block, of mass M = 1 kg, resting on a horizontal table. The speed of the bullet just before reaching %3D the block is v, = 600 m/s. If the bullet imbeds in the block, then the speed of the (bullet, block) system immediately after the collision is: a. v = 0 b. v = 14.634 m/s %3D M c. v = 17.475 m/s d. v = 11.765 m/s m + MBox 1 is sitting at rest. Box 2 is moving to the left when it collides with Box 1 (see figure). This time the two boxes stick together after the collision. The surface is frictionless. Take the right to be the positive x-direction.The mass of Box 1 is 3.80 kg. The mass of Box 2 is 5.60 kg. The speed of Box 2 is 1.20 m/s before the collision. The speed of the boxes together is 0.715 m/s after the collision.What is the total kinetic energy (both boxes) after the collision?
- 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 firecracker breaks up into several pieces, one of which has a mass of 200 g and flies off along the x-axis with a speed of 82.0 m/s. A second piece has a mass of 300 g and flies off along the y-axis with a speed of 45.0 m/s. What are the magnitude and direction of the total momentum of these two pieces? O 361 kg m/s at 56.3° from the x-axis O 21.2 kg • m/s at 56.3° from the x-axis O 361 kg m/s at 0.983° from the x-axis ● 21.2 kg • m/s at 39.5° from the x-axis O 93.5 kg • m/s at 28.8° from the x-axisTwo 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 = 7.40 m/s as in Figure a, shown below. After the collision, the orange disk moves in a direction that makes an angle of 0 = 40.0° with the horizontal axis while the green disk makes an angle of ø = 50.0° with this axis as in Figure b. Determine the speed of each disk after the collision. Vof = m/s V gf m/s After the collision of Before the collision a た。
- 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?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 v₁ = 3.25 m/s as in Figure a, shown below. After the collision, the orange disk moves in a direction that makes an angle of 0 = 38.0° with the horizontal axis while the green disk makes an angle of = 52.0° with this axis as in Figure b. Determine the speed of each disk after the collision. Vof= gf= m/s m/s Submit Answer Before the collision a b After the collision Ꮎ of -x මA billiard ball is moving in the x-direction at 30.0 cm/s and strikes another billiard ball moving in the y-direction at 40.0 cm/s. As a result of the collision, the first ball moves at 55.0 cm/s, and the second ball stops. In what final direction does the first ball move? Choose A. Such a collision cannot happen. B. at an angle of 48.2 degrees ccw from the x-direction C. at an angle of 56.9 degrees ccw from the x-direction D. at an angle of 53.1 degrees ccw from the x-direction