Two systems k and k’ synchronize their clocks at t = t’ = 0 when their origins are aligned as system k’ passes by system k along the x axis at relative speed 0.8c. at time t = 3 ns, frank (in system k) shoots a proton gun having proton speeds of 0.98c along his x axis. the protons leave the gun at x = 1 m and arrive at a target 120 m away. determine the event coordinates (x, t) of the gun firing and of the protons arriving as measured by observers in both systems k and k’.

grav forces affect all objects magnetic forces affect magnetic objects and electric currents

its c i just checked it

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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