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posledela
2 years ago
12

Perform the following mathematical operation and report the answer to the correct number of significant figures 143.6/21.2

Physics
1 answer:
jekas [21]2 years ago
8 0

Answer:

143.6/21.2

=6.773584906

=6.8

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What speed must an electron have if its momentum is to be the same as that of an x-ray photon with a wavelength of 0.30?
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The momentum of the x-ray photon is p = h/lambda . Lambda is the wavelength (0.30nm=3x10^(-9)m) and h is Planck's constant,(h=6.62607004 × 10-34<span> m2 kg / s).The momentum is: 2.2 x 10^(-25).</span>

The momentum can be calculated also as: p=mv, where m is the mass of the electron and v is the speed.

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Which statement describes the density of the inner planets?
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If the electron is initially in the ground level, E1=0.625E[infinity]E1=0.625E[infinity], and absorbs a photon, what maximum wav
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