3 years ago

How do I do this question?

Physics

1 answer:

Mkey [24]3 years ago

5 0

a. 27

after that all you need to do is use the work formula as you will be able to acheive results

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As you may well know, placing metal objects inside a microwave oven can generate sparks. Two of your friends are arguing over th

poizon [28]

Answer:

$4.048\times 10^{-7}\ m$

Explanation:

h = Planck's constant = $6.626\times 10^{-34}\ m^2kg/s$

c = Speed of light = $3\times 10^8\ m/s$

E = Energy = $4.91\times 10^{-19}\ J$

Wavelength ejected is given by

$\lambda=\dfrac{hc}{E}\\\Rightarrow \lambda=\dfrac{6.626\times 10^{-34}\times 3\times 10^8}{4.91\times 10^{-19}}\\\Rightarrow \lambda=4.048\times 10^{-7}\ m$

The maximum wavelength in angstroms of the radiation that will eject electrons from the metal is $4.048\times 10^{-7}\ m$

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3 years ago

A windmill converts the mechanical energy of wind into ?

sammy [17]

Electric power most likely. It can be a generator for a power plant if needed. Hope this helped. Sorry if it didn't.

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3 years ago

If you know the distance of an earthquake epicenter from three seismic stations, how can you find the exact location of the epic

Contact [7]

You draw 3 circles around the stations with the size of the circle equal to the distance from the earthquake. Then you simply find where the edge circles all overlap.

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3 years ago

An example of friction being converted into heat energy is A) the sun. B) a generator. C) a Snickers bar. D) rubbing your hands

padilas [110]

D.) Rubbing your hands together

Hope this helps! ( brainleist??)

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3 years ago

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What is the cooling power P? Recall that the rate at which energy is removed, also called the cooling power, was described earli

gayaneshka [121]

Answer:

36.667

Explanation:

(2.2*10^4)/(10*60)

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3 years ago