Question

Calculate the wavelength of earth (mass=6.20x10^27 g) moving
through space at 3.20x10^4 m/s

Give answer in nm

Answer #1

=h/mv

m = 6.20*10^27 g = 6.20*10^24Kg

v = 3.20*10^4 m/s

h = 6.625*10^-34J-sec

= h/mv

= 6.625*10^-34 /6.20*10^24 * 3.2*10^4

= 3.34*10^-63m = 3.34*10^-54 nm [ 1nm = 10^-9 m]

= 3.34*10^-54 nm >>>>>answer

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