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natali 33 [55]
2 years ago
9

An asteroid has acquired a net negative charge of 126C from being bombarded by the solar wind over the years, and is currently i

n equilibrium whereby it expels electrons at the same rate as it acquires them. How many more electrons does it have than protons?
Physics
1 answer:
Lemur [1.5K]2 years ago
4 0
The net charge of the asteroid is
Q=-126 C
with a negative sign since it is a net negative charge. 

The charge of one electron is
e=-1.6 \cdot 10^{-19} C

In order to find what is the excess of electrons on the asteroid, we must simply divide the net charge in excess on the asteroid by the charge of a single electron, and we find:
N= \frac{Q}{e}= \frac{-126 C}{-1.6 \cdot 10^{-19} C} =7.87 \cdot 10^{20}
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