Apion lives 26 ns in its rest frame. it travels 15 cm down a beam pipe in a particle accelerator before it decays into other particles. how far is this in the rest frame of the pion?

Explanation:

It is given that,

Life time of a pion,

Distance covered by a pion, d = 15 cm = 0.15 m

We need to find distance from the rest frame of the pion. Firstly, we can calculate the speed of the pion as :

v = 5769230.76 m/s

or

Its length in the rest frame is given by the formula as :

or

So, the length of the pion in rest frame is 14.9 cm. Hence, this is the required solution.

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.