Answer: 4.43*10^-21kg
Explanation:
this topic deals with electromagnetic wave radiation energy, that was first introduced by Max Planck which is mathematically, E = hf
Given
Speed of object, v= 185m/s
Wavelength, λ=0.810fm
Planck's constant, h=6.63*10^-34Js
Mass of object, m=?
Solution....
1fm = 1 * 10^-15m
Therefore, 0.810fm = .810 * 1 * 10^-15
= 8.1 * 10^-16m
De Broglie states that λ=h/mu
m=h/λu
substituting the values in the equation, we have
m = (6.63*10^-34)/(8.1*10^-16 * 185)
m = 6.63*10^-34/1.5*10^-13
m = 4.43*10^-21kg
