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Charra [1.4K]
3 years ago
13

The Faraday disk was an early example of what?

Physics
1 answer:
Evgen [1.6K]3 years ago
8 0
Electrical generator which operates using a magnetic field. It is the beginning of modern dynamos.
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Answer:

m = 15 kg

Explanation:

p = m × v

90 = m × 6

6m = 90

m = 90/6

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Two objects with masses m and 3m are connected by a compressed spring so that the energy stored in the spring is 375 joules. If
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Answer:

281.25 J

Explanation:

We are told that the two objects with masses m and 3m.

Also that energy stored in the spring is 375 joules.

Now, initially the centre of mass of the system took place at rest, it means v1 = v and v2 = v/3

Thus, from principle of conservation of energy, we have;

½mv² + ½(3m)(v/3)² = 375J

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Multiply both sides by ¾ to get;

½mv² = 375 × ¾

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