3 years ago

The observation of a "wet spot" on a hot highway in the summer is caused by:_________.

Physics

1 answer:

maxonik [38]3 years ago

5 0

Answer: Refraction

Explanation:

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Convergent faults _____.

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Move towards each other and create mountains

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object carries a charge of -8.1 ÂµC, while another carries a charge of -2.0 ÂµC. How many electrons must be transferred from the

LenKa [72]

Number of electrons transferred: $1.91\cdot 10^{13}$

Explanation:

The charge on the first object is

$Q_1 = -8.1\mu C$

while the charge on the 2nd object is

$Q_2=-2.0 \mu C$

When they are in contact, the final charge on each object will be

$Q=\frac{Q_1+Q_2}{2}=\frac{-8.1+(-2.0)}{2}=-5.05 \mu C$

So, the amount of charge (electrons) transferred from the 1st object to the 2nd object is

$\Delta Q = Q_1 - Q = -8.1 -(5.05)=-3.05 \mu C = -3.05\cdot 10^{-6}C$

The charge of one electron is

$e=-1.6\cdot 10^{-19}C$

Therefore, the number of electrons transferred is

$N=\frac{Q}{e}=\frac{-3.05\cdot 10^{-6}}{-1.6\cdot 10^{-19}}=1.91\cdot 10^{13}$

Learn more about electrons:

brainly.com/question/2757829

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3 years ago

What percentage of the mass of the solar nebula consisted of elements other than hydrogen and helium?

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75% of the mass contains hydrogen 25% helium and all other elements comprising only of 2%

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An object that is moving in a linear path with an acceleration in the direction opposite to the motion has a(n) ______________ v

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An object that is moving in a linear path with an acceleration in the direction opposite to the motion has a(n) _______changing_______ velocity.

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4 years ago

An ion of an element has 30 protons 32 neutrons and 29 electrons what is that charge and how did you make that determination

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The ion has a charge of 1 +.

A neutral ion would have the same number of protons and neutrons. The neutrons have no charge (they're neutral) so they don't matter when it comes to the charge of an ion. This ion has 30 protons (+) and 29 electrons (-). There is 1 more proton than there are electrons so the ion has a charge of 1 +.

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