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melamori03 [73]
3 years ago
15

2.

Physics
1 answer:
Shkiper50 [21]3 years ago
5 0

Answer:

the balloon is filled with the 8.5 litre of helium. temperature is 294 kelvin.

party starts at 4 p.m.

the temperature rises 305 kelvin.

the new volume = 4 litres

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Answer:

i) C decreases

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Explanation:

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We know, capacitance is given by:

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<em>In this case as the distance between the plates increases the capacitance decreases while area and permittivity of free space remains constant.</em>

ii)

As the amount of charge has nothing to do with the plate separation in case of an open circuit hence the charge Q remains constant.

iii)

Electric field between the plates is given as:

E=\frac{\sigma}{\epsilon_0}

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<em>As we know that distance of plate separation cannot affect area of the plate. Charge Q and permittivity are also not affected by it, so E remains constant.</em>

iv)

  • From the basic definition of voltage we know that it is the work done per unit charge to move it through a distance.
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What is the correct water depth for an echo travel time of 6 seconds? (for the purposes of this exercise, assume pressure and te
saul85 [17]
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