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Studentka2010 [4]
2 years ago
6

Two parallel circular plates with radius carrying equal-magnitude surface charge densities of are separated by a distance of How

much stored energy do the plates have? A. 120 B. 360 C. 12 D. 37​
Physics
2 answers:
Paha777 [63]2 years ago
8 0
I’m thinking it’s a but I’m not that smart
SpyIntel [72]2 years ago
6 0

Answer:

I guess it is A. I am not sure

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Rony fills a bucket with water and whirls it in a vertical circle to demonstrate that the water will not spill from the bucket a
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Answer:

0 N, 3.49 m/s

Explanation:

Draw a free body diagram for the bucket at the top of the swing.  There are two forces acting on the bucket: weight and tension, both downwards.

If we take the sum of the forces in the radial direction, where towards the center is positive:

∑F = ma

W + T = m v² / r

The higher the velocity that Rony swings the bucket, the more tension there will be.  The slowest he can swing it is when the tension is 0.

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mg = m v² / r

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Given that r = 1.24 m:

v = √(9.8 m/s² × 1.24 m)

v = 3.49 m/s

8 0
3 years ago
An experiment is performed on an unknown material and produces the given heat curve. The temperature of the material is shown as
BlackZzzverrR [31]

Answer:

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If the sample of material has a mass of =8.60 g, calculate the specific heat when this material is a solid, and when it is liquid, l

4 0
2 years ago
A 70kg man runs at a pace of 4 m/s and a 50g meteor travels at 2 km/s. Which has the most kinetic energy?.
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