3 years ago

What is the net worth of a car moving 30 miles per hour

Physics

1 answer:

miss Akunina [59]3 years ago

6 0

Do you know the mass of the car?

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There is a simple relationship between the energy for a photon of light Ephoton in units of eV (electron volts) and its waveleng

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Answer:

$\lambda=620\ nm$

$E_p=1.9682\ eV$

$E_p=206.67\ eV$ is the photon energy of an x-ray

Explanation:

Given:

Energy of photon, $E_p=2\ eV$

Then according to given:

$E_p=\frac{1240}{\lambda}$

$2=\frac{1240}{\lambda}$

$\lambda=620\ nm$ is the wavelength

Again,

Energy of photon, $E_p=?$

wavelength of the light, $\lambda=630\ nm$

$E_p=\frac{1240}{630}$

$E_p=1.9682\ eV$

<u>Now, photon energy for an x-ray:</u>

wavelength, $\lambda=6\ nm$

$E_p=\frac{1240}{6}$

$E_p=206.67\ eV$ is the photon energy of an x-ray

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Use the magnitude acceleration formula .

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Why we cannt cook food on high attitude (like mountain where exist low temperatures )?

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an object is held 33.5 cm from a convex mirror. it creates a virtual image of magnification 0.253. what is the focal length of t

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