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n200080 [17]
3 years ago
12

A large lightning bolt consists of a 18.2~\text{kA}18.2 kA current that moved 30.0~\text{C}30.0 C of charge. Assuming a constant

current during the discharge, what is the duration of this lightning bolt?
Physics
2 answers:
worty [1.4K]3 years ago
7 0

Answer:

The duration of the lightning bolt is 1.65 milliseconds

Explanation:

Current is a physical quantity that tells how much charge (q) pass through a specific surface, and its unit on the International system of units is the ampere (A), that is coulomb over time \frac{C}{t}. So current equation is:

I=\frac{dq}{dt}

If I is constant then the equation becomes:

I= \frac{Q}{t}

With Q the net charge

Solving for t:

t=\frac{Q}{I}=\frac{30.0C}{18.2\times10^3A}

t=1.65\times10^{-3}s=1.65 ms

marissa [1.9K]3 years ago
6 0

Answer:

1.65\times {-3} \text { s}

Explanation:

Current is the rate of flow of charge.

I=\dfrac{Q}{t}

t = \dfrac{Q}{I}

t = \dfrac{30.0}{18.2\times10^3} =1.65\times {0-3} = 1.65\times {-3} \text { s}

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We must take in consideration that two parts with same mass do not move in same direction. The center of mass of these two parts moves between them at angle of 45° with respect to both south and west. The speed of a center of mass is:
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