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A proton with an initial speed of 1.80 ✕ 108 m/s in the +x direction collides...

A proton with an initial speed of 1.80 ✕ 108 m/s in the +x direction collides elastically with another proton initially at rest. The first proton's velocity after the collision is 1.492 ✕ 108 m/s at an angle of 34.0° with the +x-axis. What is the velocity (magnitude and direction) of the second proton after the collision?

magnitude                                                          m/s
direction                                                      ° counterclockwise from the +x-axis
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