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2 years ago

10

Ball A is negatively charged and ball B is electrically neutral. What happens to the charges of both balls when they come into c

ontact with each other if:
a) they are made of an electrical conductor
b) they are made of insulator

1 answer:

tresset_1 [31]2 years ago

5 0

Explanation:

They will repel, thus made of electrical conductor.

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2 years ago

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Lubov Fominskaja [6]

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Explanation:

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Answer:

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Explanation:

By Impact Theorem we know that impact done by the sledge hammer on the chisel is equal to the change in the linear momentum of the former. The mathematical model that represents the situation is now described:

$\bar F \cdot \Delta t = m \cdot (v_{2}-v_{1})$ (1)

Where:

$\bar F$ - Average impact force, in newtons.

$\Delta t$ - Duration of the impact, in seconds.

$m$ - Mass of the sledge hammer, in kilograms.

$v_{1}$ , $v_{2}$ - Initial and final velocity, in meters per second.

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$\bar F = \frac{m\cdot (v_{2}-v_{1})}{\Delta t}$

$\bar F = 12000\,N$

The average impact force is 12000 newtons.

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