A238 92u nucleus is moving in the x-direction at 5.0 × 105 m/s when it decays into an alpha particle 4 2he and a 234 90th. if the alpha particle moves off at 21.2° above the x axis with a speed of 1.4 × 107 m/s, what is the recoil velocity of the thorium nucleus? assume the uranium-thorium-alpha system is isolated; you may also assume the particles are pointlike.

Due sun 06/09/2019 11: 59 pm skip navigation questions correct q 1 [1/1] correct q 2 [1/1] correct q 3 [1/1] untried q 4 (0/1) untried q 5 (0/1) untried q 6 (0/1) untried q 7 (0/1) untried q 8 (0/1) untried q 9 (0/1) untried q 10 (0/1) grade: 3/10 print version start of questions two cyclists, 42 miles apart, start riding toward each other at the same time. one cycles 2 times as fast as the other. if they meet 2 hours later, what is the speed (in mi/h) of the faster cyclist?