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White raven [17]
3 years ago
14

If the magnets are removed from the skateboard, the height of the skateboard should [increase, decrease, stay the same].

Physics
2 answers:
galina1969 [7]3 years ago
8 0
Decrease Is what I think
vagabundo [1.1K]3 years ago
6 0

Maybe its decrease I'm sceptical though

Explanation:

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The emission of x rays can be described as an inverse photoelectric effect.
timama [110]

Answer:

The potential difference through which an electron accelerates to produce x rays is 1.24\times 10^4\ volts.                                                  

Explanation:

It is given that,

Wavelength of the x -rays, \lambda=0.1\ nm=0.1\times 10^{-9}\ m

The energy of the x- rays is given by :

E=\dfrac{hc}{\lambda}

The energy of an electron in terms of potential difference is given by :

E=eV

So,

\dfrac{hc}{\lambda}=eV

V is the potential difference

e is the charge on electron

V=\dfrac{hc}{e\lambda}

V=\dfrac{6.63\times 10^{-34}\times 3\times 10^8}{1.6\times 10^{-19}\times 0.1\times 10^{-9}}

V = 12431.25 volts

or

V=1.24\times 10^4\ volts

So, the potential difference through which an electron accelerates to produce x rays is 1.24\times 10^4\ volts. hence, this is the required solution.

4 0
3 years ago
Pure metals are _____.
DanielleElmas [232]
Hello Alexandra, A pure metal is a substance that contains atoms of only one type of metallic element.

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5 0
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When talking about the products of photosynthesis, why is it a HUGE issue when a vast amount of the rainforests is dying along w
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Answer:

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What is the scientific name for a push or a pull?
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Answer:

thats a force

Explanation:

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Tulongan nyo ko guys​
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