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AfilCa [17]
2 years ago
13

A student has made the statement that the electric flux through one half of a Gaussian surface is always equal and opposite to t

he flux through the other half of the Gaussian surface. This is:_______.
a. never true.

b. never false.

c. true whenever enclosed charge is symmetrically located at a center point, or on a center line or centrally placed plane

d. true whenever no charge is enclosed within the Gaussian surface.

e. true only when no charge is enclosed within the Gaussian surface.
Physics
1 answer:
nata0808 [166]2 years ago
6 0

Answer:

E.true only when no charge is enclosed within the Gaussian surface.

Explanation:

Because Gauss’s law states that the net flux of an electric field in a closed surface is directly proportional to the enclosed electric charge.

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serg [7]

Answer:

The final velocity of the bullet is 9 m/s.

Explanation:

We have,

Mass of a bullet is, m = 0.05 kg

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Initial speed of bullet, v = 909 m/s

The bullet embeds itself in the block which flies off its stand. Let V is the final velocity of the bullet. The this case, momentum of the system remains conserved. So,

mv=(m+M)V\\\\V=\dfrac{mv}{m+M}\\\\V=\dfrac{0.05\times 909}{0.050+5}\\\\V=9\ m/s

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2 years ago
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Explanation:

Given that,

Force with which a child hits a ball is 350 N

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So, the impulse is 42 N-m..

We know that he change in momentum is also equal to the impulse delivered.

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Monica [59]

Answer:

n (a neutron)

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Which means that the number of neutrons is n =  A - Z = 40 - 39 = 19

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