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natta225 [31]
3 years ago
9

What is the charge exchanged through contact ?

Physics
1 answer:
DIA [1.3K]3 years ago
7 0
I was hoping that there would be some options to choose from in regards to this question. Since there are no options given, so i am giving the answer based on my knowledge and hope that it helps. The charge exchanged through contact is known as static charge of electrostatic charge. This charge is exchanged mostly through rubbing between two objects.
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Answer:

x = 0.974 L

Explanation:

given,

length of inclination of log = 30°

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rock is located at = 0.6 L

L is the length of the log

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let x be the distance from left at which log is horizontal.

For log to be horizontal system should be in equilibrium

 ∑ M = 0

mass of the log will be concentrated at the center  

distance of rock from CM of log = 0.1 L

now,

∑ M = 0

m_{log} g \times 0.1 L = m_{engineer} g \times (x - 0.6 L)

200 \times 0.1 L = 53.5 \times (x - 0.6 L)

0.374 L =x - 0.6 L

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hence, distance of the engineer from the left side is equal to x = 0.974 L

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Predict using Boyle's law, what will happen to a balloon that an ocean diver takes to a pressure of 202 kPa.
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The volume of the balloon will halve

Explanation:

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V is the volume

The equation can also be rewritten as

p_1 V_1 = p_2 V_2

And if we apply it to the gas inside the balloon in this problem (assuming its temperature is constant), we have:

p_1 = 101 kPa is the initial pressure at sea level (the atmospheric pressure)

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p_2 = 202 kPa is the final pressure

V_2 is the final volume

Substituting into the equation, we find:

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Which means that the volume of the balloon will halve.

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