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bagirrra123 [75]
2 years ago
10

What does the narrator mean when he says that energy is “as old as time itsself “

Physics
1 answer:
guajiro [1.7K]2 years ago
5 0
That as long as we know there has always been energy

Hope this helps :)
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B

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According to the law of conservation of momentum, in a(n) _______ system, the initial total momentum before a collision equals t
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Suppose a nonconducting sphere, radius r2, has a spherical cavity of radius r1 centered at the sphere's center. Assuming the cha
leva [86]

Answer:

Explanation:

a ) Between r = 0 and r = r₁

Electric field will be zero . It is so because no charge lies in between r = 0 and r = r₁ .

b ) From r = r₁ to r = r₂

At distance r , charge contained in the sphere of radius r

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q = Q x r³ / R³

Applying Gauss's law

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E ∝ r .

c )

Outside of r = r₂

charge contained in the sphere of radius r = Q

Applying Gauss's law

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3 years ago
What are the magnitude and direction of electric field at the center of square?
Kobotan [32]

Answer:

hello the diagram related to this question is missing attached below is the missing diagram

Answer :

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direction = 45° east to south

Explanation:

The magnitude of the electric field = 4KQ / L^2

direction = 45° east to south

6 0
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