Traumatic brain injury. According to a report on traumatic brain injury, the force that a professional boxer's fist exerts on hi
s opponent's head is equivalent to being hit with a 5.9 kg bowling ball traveling at 8.9 m/s that stops in 0.018 s.
Determine the average force that the fist exerts on the head.
Determine the average force that the fist exerts on the head.
1 answer:
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Answer:
13.4cm
Explanation:
According to Rayleigh’s criterion the angular resolution to distinguish two objects is given by:
θ = 50.0*10^-7 rad
λ: wavelength of the light = 550nm
b = diameter of the objective
By doing b the subject of the formula and replacing the values of the angle and wavelength you obtain:
hence, the smallest diameter objective lens is 13.4cm