A 20 kg body is moving through space in the positive direction of an x axis with a speed of 200 m/s when, due to an internal explosion, it breaks into three parts. One part, with a mass of 6.0 kg, moves away from the point of explosion with a speed of 130 m/s in the positive y direction. A second part, with a mass of 3.3 kg, moves in the negative x direction with a speed of 510 m/s. What are the (a) x- component and (b) y-component of the velocity of the third part? (c) How much energy is released in the explosion? Ignore effects due to the gravitational force. (a) Number (b) Number (c) Number M. i IM Units Units Units <
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- An unstable atomic nucleus of mass 1.60 x 102 kg initially at rest disintegrates into three particles. One of the particles, of mass 5.10 x 10 27 kg, moves in the y direction with a speed of 6.00 x 10 m/s. Another particle, of mass 8.42 x 10 kg, moves in the x direction with a speed of 4.00 x 10 m/s. x 1)m/s (b) Find the total kinetic energy increase in the process. 576.69-15 ✔3 (a) Find the velocity of the third particle. -13.560-21 X112.34e-21A railroad car of mass 2.25 ✕ 104 kg moving at 2.75 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. (a) What is the speed of the three coupled cars after the collision? m/s(b) How much kinetic energy is lost in the collision?A 9 kg steel ball strikes a wall with a speed of 4.98 m/s at an angle of 30.7° with the normal to the wall. It bounces off with the same speed and angle, as shown in the figure. y 4.98 m/s 30.7° T 30.7° 9 kg 9 kg 4.98 m/s x If the ball is in contact with the wall for 0.255 s, what is the magnitude of the average force exerted on the ball by the wall? Answer in units of N. Your response... i Previous Responses X #1. 201.5089 PALETTE
- The carbon isotope 14C is used for carbon dating of archaeological artefacts. 14C decays to 14N by a process known as beta decay, in which the nucleus emits an electron (also known as a beta particle) and a subatomic particle called a neutrino. In one such decay, the electron and the neutrino are emitted in opposite directions to each other. The electron has a speed of 5 x 10 m/s and the neutrino has a momentum of 5 x 1024 kg m/s. n as What is the recoil speed of the resulting 14N nucleus? (Take the mass of the carbon-14 and nitrogen-14 nuclei to be 2.34 x 10 26 kg and the mass of the electron to be 9.11 x 1031 kg. If you were aware of such things and concerned, please ignore relativistic effects.)The carbon isotope 14C is used for carbon dating of archaeological artefacts. 14C decays to 14N by a process known as beta decay, in which the nucleus emits an electron (also known as a beta particle) and a subatomic particle called a neutrino. In one such decay, the electron and the neutrino are emitted in opposite directions to each other. The electron has a speed of 4 x 107 m/s and the neutrino has a momentum of 8 × 10-24 kg m/s. What is the recoil speed (in m/s) of the resulting 14N nucleus? (Take the mass of the carbon-14 and nitrogen-14 nuclei to be 2.34 x 10-26 kg and the mass of the electron to be 9.11 x 1031 kg. If you were aware of such things and concerned, please ignore relativistic effects.)Three carts are moving on a frictionless horizontal track as shown in the figure. The 4.00 kg cart is moving to the right with a speed of 7.0 m/s, the 10.0 kg cart is also moving to the right with a speed of 6.0 m/s while the 3.00 kg cart moves to the left with a speed of 7 m/s. Find the final speed of the carts when they are all stuck together. Hint: The order at which the carts stick together does not matter. Can you see why?
- A car with a mass of 980 kg is initially traveling east toward an intersection with a speed of vc = 20.2 m/s and a 1500 kgpickup is traveling north toward the same intersection. The car and truck collide at the intersection and stick together. After the collision, the wreckage (car and truck) moves off in a direction of 43.0° above the x-axis. Determine the initial speed of the truck and the final speed of the wreckage in meters per second. initial speed of the truck m/sfinal speed of the wreckage m/sObject A has a mass of 50kg and is moving along the +x axis with a speed of 10m/s. Object B has a mass of 65kg, and is moving at 8m/s in the positive y direction. The two objects collide at the origin and stick together. What is their final velocity?A 9 kg steel ball strikes a wall with a speed of 4.98 m/s at an angle of 30.7° with the normal to the wall. It bounces off with the same speed and angle, as shown in the figure. y 4.98 m/s 30.7° * 30.7° 9 kg 9 kg 1.98 m/s x If the ball is in contact with the wall for 0.255 s, what is the magnitude of the average force exerted on the ball by the wall? Answer in units of N. Your response... i Previous Responses X #1. 201.5089 PALETTE
- A railroad car of mass 3.50 ✕ 104 kg moving at 3.05 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. a) What is the speed of the three coupled cars after the collision? b) How much kinetic energy is lost in the collision?A lumberjack is standing on a log floating on a lake. She starts from rest, then runs along the log to the end, when she jumps from the first log onto a second. After landing safely on the second log, she slows down and ends up standing on the second log. Both logs both have masses of 150 kg each and the mass of the lumberjack is 70 kg. The lumberjack reaches a speed of 7.0 m/s relative to the shore during her jump. What is the speed of the lumberjack after she has stopped on the second log? You may assume the drag of the water on the logs is very small. Please answer in units of m/s.A railroad car of mass 3.20 x 10* kg moving at 3.35 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. (a) What is the speed of the three coupled cars after the collision? m/s (b) How much kinetic energy is lost in the collision? Need Help? Read It