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2 years ago

If the energy of a photon is 1.32 × 10¯18 j, what is its wavelength in nm?

Physics

2 answers:

Katarina [22]2 years ago

8 0

I think I remember hold on let me see if I can solve it

son4ous [18]2 years ago

8 0

Answer:

Explanation:

The energy E of a photon is

directly proportional to its frequency f by E = hf, where h is Planck's constant (above)

and the wavelength w is inversely proportional to the frequency by w = c/f, so we have

E related to w by: E = hc/w. Since h and c are constants, their product hc is constant

being 1.989 * 10**-25 joule-meters. So if we know E is 1.32 * 10**-18 J, we have:

1.32 * 10**-18 = (1.989 * 10**-25) / w or w = (1.989 * 10**-25) / (1.32 * 10**-18) Doing

the division and we find w = 1.507 x 10-7 meters, or 150.7 nanometers. (ultraviolet)

A. 150 x 10-7nm

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Answer:0.25 kg-m/s

Explanation:

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3 years ago

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Sphinxa [80]

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1 year ago

Calcular la energía cinética de un cometa cuya masa es de 5×10 elevado a 31 kg y se mueve con velocidad de 216000km/h

PolarNik [594]

The kinetic energy is $9\cdot 10^{40}J$ .

Explanation:

The kinetic energy of an object is given by

$K=\frac{1}{2}mv^2$

where

K is the kinetic energy of the object

m is the mass of the object

v is the speed of the object

For the comet in this problem, we have:

$m=5\cdot 10^{31} kg$ is its mass

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First, we convert the speed from km/h to m/s:

$v=216,000 \frac{km}{h} \cdot \frac{1000 m/km}{3600 s/h}=60,000 m/s$

Therefore, the kinetic energy of the comet is

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brainly.com/question/6536722

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2 years ago

A child is sliding down a slide at the playground. is the mechanical energy conserved. why or why not.

aleksandrvk [35]

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2 years ago

Read 2 more answers

If 2 grams of element X combine with 4 grams of element Y to form compound XY, how many grams of element Y would combine with 11

kykrilka [37]

This is sort of simple. 2 grams of X can combine with 4 grams of Y to form XY. Y is 2 times the amount of grams in X. So if there are 11 grams of X there are 22 grams of Y to form XY. Or you could take 11 divided by 2 is 5.5 and then multiply 4 by 5.5 to get 22. If this is wrong please tell me I would be very happy to know.

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3 years ago