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rosepetals2938
21.05.2020 •
Physics
Rank these objects on the basis of their wavelength. (largest to smallest)person v=4.5m/selectron v=0.01cred light v=cproton v=0.01ccar v=27m/sbaseball v=41m/s
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Ответ:
red light > electron > proton > baseball > person > car
Explanation:
To calculate the wavelength associated to each object, you use the Broglie's relation:
h: Planck,s constant = 6.62*10^-34 Js
m: mass
v: velocity
For each object you use an average values of its mass.
person:
mass = 80kg
electron:
mass = 9.1*10^{-31}kg
red light:
In this case you use the following formula:
proton:
mass = 1.67*10^{-27}kg
car:
mass = 1500kg
baseball:
mass = 0.145kg
hence, by comparing the wavelengths of the objects you have:
red light > electron > proton > baseball > person > car
Ответ: