A n-meson is a particle that decays into a muon and a massless particle. The n-meson has a rest mass energy of 139.6 MeV and the muon has a rest mass energy 105.7 MeV. Suppose the n-meson is at rest and all of the missing mass goes into the muon's kinetic energy. How fast will the muon move?

How many neutrons does element x have if it’s stormy umber is 33 and it’s mass number is 95?

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10