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Slav-nsk [51]
3 years ago
5

Steve and José drove José's car to the beach during spring break. The 495 kilometer drive took them 8 hours and 30 minutes. What

was their average velocity for the trip?
Physics
1 answer:
Setler [38]3 years ago
7 0

Answer: The average velocity was 58 KPH

Explanation:

495/8.5 = 58.23 (average so only 58)

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If the charge on the negative plate of the capacitor is 121 nano-Coulomb, how many excess electrons are on that plate? Write you
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Answer:

n = 756.25 giga electrons

Explanation:

It is given that,

If the charge on the negative plate of the capacitor, Q=121\ nC=121\times 10^{-9}\ C

Let n is the number of excess electrons are on that plate. Using the quantization of charges, the total charge on the negative plate is given by :

Q=ne

e is the charge on electron

n=\dfrac{Q}{e}

n=\dfrac{121\times 10^{-9}}{1.6\times 10^{-19}}

n=7.5625\times 10^{11}

or

n = 756.25 giga electrons

So, there are 756.25 giga electrons are on the plate. Hence, this is the required solution.

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