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How the fuck do you do this?
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We are working with uncertainty principles in my chemistry class and I have no idea how to go about answering this question.

Is there a formula that I can use and can someone point me in the right direction?

The question is:
If photons of green light (wavelength=530 nm) are used to locate the position of the basketball (thrown with a velocity of 30 m/s) with precision of one wavelength of the green light, what would be minimum spread in the speed of the baseball?
>>
You need to use the following equations:

$E = \frac{{hc}}{\lambda }$
$E = m{c^2}$
$p = mv$
$\Delta x\Delta p \geqslant \frac{\hbar }{2}$