2 years ago

Que ocurre cuando un globo electrizado se toca con uno que no?

Physics

1 answer:

sweet-ann [11.9K]2 years ago

3 0

Answer:

no hablo espanol

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When you irradiate a metal with light of wavelength 433 nm in an investigation of the photoelectric effect, you discover that a

sergij07 [2.7K]

Answer:

The right solution is:

(a) 2.87 eV

(b) 1.4375 eV

Explanation:

Given:

Wavelength,

= 433 nm

Potential difference,

= 1.43 V

Now,

(a)

The energy of photon will be:

E = $\frac{6.626\times 10^{-34}\times 3\times 10^8}{433\times 10^{-9}}$

= $4.59\times 10^{-19} \ J$

or,

= $\frac{4.59\times 10^{-19}}{1.6\times 10^{-19}}$

= $2.87 \ eV$

(b)

As we know,

⇒ $Vq=\frac{hc}{\lambda}-\Phi_0$

By substituting the values, we get

⇒ $1.43\times 1.6\times 10^{19}=\frac{6.626\times 10^{-34}\times 3\times 10^8}{433\times 10^{-9}}-\Phi_0$

⇒ $\Phi_0=2.3\times 10^{-19} \ J$

or,

⇒ $=\frac{2.3\times 10^{-19}}{1.6\times 10^{-19}}$

⇒ $=1.4375 \ eV$

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3 years ago

Jaime lifts a package weighing 75N. if she lifts it 1.2 m, what work has she done

9966 [12]

Answer:
90 J
Explanation:
W=fd
W=(75)(1.2)
W= 90 J

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3 years ago

A suitcase has a width of 55 cm. Which unit conversation fraction should you use to find the width in inches?

Crank

Answer:

2,54 cm are equal to 1 inch

Explanation:

Doing the conversion:

$55[cm]*\frac{1[inch]}{2,54[cm]} =21,65[inch]$

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2 years ago

24) Which of the following equations is correctly balanced? HELP ME ASAP PLEASE

hammer [34]

Answer:

the correct answer is option C

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2 years ago

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What do you call any two colors of light that combine to form white light?

Sever21 [200]

Hello there!

We called that complementary colors.

As always, it is my pleasure to help students like you!

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3 years ago

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