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Likurg_2 [28]
3 years ago
13

Electrically inert metal ball A is connected to the ground by a wire. What happens to the charge of this ball if you bring a neg

atively charged ball B near it. Justify your answer.
Physics
1 answer:
kaheart [24]3 years ago
7 0

Explanation:

They will repel, meaning that they are made of an electrical conductor.

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Mama L [17]

There is a basic difference, because mass is the actual amount of material contained in a body and is measuredin kg, gm, etc. Whereas weight is the force exerted by the gravity on that object mg. Note that mass is independent of everything but weight is different on the earth

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Name three (3) organelles that are found in plant cells that are not commonly found in animal cells?
xeze [42]

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cell wall, chloroplasts, plastids

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3 years ago
The sound waves from a noisy jet travel from the air into water. Which property of the wave will not change?​
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3 years ago
A bicycle tire is spinning counterclockwise at 2.70 rad/s. During a time period Δt = 1.50 s, the tire is stopped and spun in the
Andru [333]

Answer:

Δω = -5.4 rad/s

αav = -3.6 rad/s²

Explanation:

<u>Given</u>:

           Initial angular velocity = ωi = 2.70 rad/s

           Final angular velocity = ωf = -2.70 rad/s (negative sign is  

           due to the movement in opposite direction)

           Change in time period = Δt = 1.50 s

<u>Required</u>:

           Change in angular velocity = Δω = ?

           Average angular acceleration = αav = ?

<u>Solution</u>:

          <u>Angular velocity (Δω):</u>

               Δω = ωf - ωi

               Δω = -2.70 - 2.70

               Δω = -5.4 rad/s.

          <u> Average angular acceleration (αav):</u>

               αav = Δω/Δt

               αav = -5.4/1.50

              αav = -3.6 rad/s²

Since, the angular velocity is decreasing from 2.70 rad/s (in counter clockwise direction) to rest and then to -2.70 rad/s (in clockwise direction) so, the change in angular velocity is negative.

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2 years ago
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