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lakkis [162]
3 years ago
14

Which of these is the best exclamation for why to negatively charged balloons, if put close, will repel?

Physics
1 answer:
kodGreya [7K]3 years ago
8 0
It was a axswcdecw avgrrvrawevefevagf
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Liquids usually have higher volume coefficients of expansion than solids do. <br> true or false
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Answer: true

Explanation:

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A physics student looks into a microscope and observes that small particles suspended in water are moving about in an irregular
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d. the actual motion is regular, but the speeds of particles are too large to observe the regular motion

Explanation:

The speeds of the particles are very large and comparatively the average  free path is very small . Therefore time taken in covering the free path ( path between two consecutive collision with medium particles ) is very small . Hence the st line  path covered by particles between two collision is less likely to be visible. Hence motion appears irregular or zig-zag.

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A pump uses a piston of 15 cm diameter that moves at 2.0 cm/s as it pushes a fluid through a pipe. what is the speed of the flui
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The important point here is that volumetric flow rate in the pump and the pipe is the same.

Q = AV, where Q = Volumetric flow  rate, A = Cross sectional area, V = velocity

Q (pump) = (π*15^2)/4*2 = 353.43 cm^3/s
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During the last shot of the game, the basketball goes from rest to 15 m/s and reaches the backboard in 0.41 s. What was the acce
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