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3 years ago

Please help me as soon as possible.

Physics

1 answer:

Vilka [71]3 years ago

5 0

Answer:

true

Explanation:

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Kelli has a mass of 42-kg, and she is sitting on a playground swing that hangs .4m above the ground. Her mom pulls the swing bac

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How does the density of most metals compare to most non metals?

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Two men are pushing a box in the same direction, to the right along the floor. the first man is pushing with a force of 20n. the

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3 years ago

The table shows the charges and the distance between five different pairs of objects.

zmey [24]

Answer:

the list of forces from greatest to least is Y, W, X, Z

Explanation:

Given data:

5 pairs of charged plates with force between each pair as : F, W, X,Y, Z

Also given are the charges q1 and q2 of plates in each pair and the distances between them (refer attachment)

To find: to arrange the force from greatest to least.

Initial step is to calculate the force value using the given data of charges and distance between plates.

We know that the force between two charged plates is given by the formula:

F = $\frac{kq1q2}{r^{2} }$

where,

q1 and q2 are charge of the two plates

r is the distance between two plates

k is coulomb constant

Since the problem involves comparison of forces, the k values is not necessarily discussed.

Now we have to calculate force values

F = $\frac{kq^{2} }{d^{2} }$

W = $\frac{2kq^{2} }{d^{2} }$

X = $\frac{kq^{2} }{4d^{2} }$

Y = $\frac{3kq^{2} }{d^{2} }$

Z = $\frac{kq^{2} }{9d^{2} }$

Assume values of q = 1 and d = 2, we get

F = 0.5k

W = 0.5k

X = 0.0625k

Y = 0.75k

Z =0.025k

F and W are though same, the calculated force value shows W = 2F

Hence W is greater than F.

Therefore, the list of forces from greatest to least is Y, W, F, X, Z

Hence answer is : Y, W, X, Z

7 0

3 years ago

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