# NO LINKS(07.04 MC)When a nucleus emits an alpha particle, the mass number of the nucleusdecreases, increases, stays the same, doubles

4 answers

###### Question:

NO LINKS(07.04 MC) When a nucleus emits an alpha particle, the mass number of the nucleus

decreases, increases, stays the same, doubles

decreases, increases, stays the same, doubles

## Answers

the answer is b ) square root of 5

The duration of a photographic flash is related to an rc time constantly

you'd use the equation that establishes a relationship between energy and wavelength, which looks like this

e=h⋅cλ, where

λ - the wavelength of the photon; c - the speed of light, usually given as 3⋅108m/s; h - planck's constant, equal to 6.626⋅10−34j s

plug the value you were given for the energy of the photon in the above equation to get the wavelength

e=h⋅cλ⇒λ=h⋅ce

λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m

//(b) both involve the use of levers;

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