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Tpy6a [65]
2 years ago
6

If you had started with a larger mass, how would the half-life change?

Physics
1 answer:
iogann1982 [59]2 years ago
3 0

Answer:

There is no change, unless your mass is somehow at the quantum level, at which the concept of half-life breaks down.

Half life is a property of the specific radioactive isotope...NOT of the initial sample's mass.

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A diffraction grating with 600 lines/mmlines/mm is illuminated with light of wavelength 510 nmnm. A very wide viewing screen is
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Answer:

A.2.95 m

B.7

Explanation:

We are given that

Diffraction grating=600 lines/mm

d=\frac{1 mm}{600}=\frac{1\times 10^{-3} m}{600}=1.67\times 10^{-6} m

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A.We have to find the distance between the two m=1 bright fringes

sin\theta=\frac{m\lambda}{d}

For first bright fringe, =1

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\theta=sin^{-1}(0.305)=17.76^{\circ}

The distance between two m=1 fringes

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Hence, the distance between two m=1 fringes=2.95 m

B.For maximum number of fringes,

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sin\theta=\frac{m\lambda}{d}

Substitute the values

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A roller coaster will have higher kinetic energy at the lower hill because it will have already been moving as opposed to the initial hill. But I'm not one hundred percent certain. You can always google this stuff, but I do know for sure that at the first hill, the roller coaster will have higher potential energy.
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