3 years ago

What is a car's acceleration between 25 s and 30 s?

Physics

1 answer:

Alex73 [517]3 years ago

7 0

I think you subtract them so you’ll get 5s

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3 years ago

An infinite plane of charge has a surface charge density of 5 µC/m2 . How far apart are the equipotential surfaces whose potenti

Lostsunrise [7]

Answer:

Distance in mm will be 0.3718 mm

Explanation:

We have given charge surface charge density $\rho _s=5\mu c/m^2=5\times 10^{-6}\mu c/m^2$

We know that electric field due to surface charge density is given by

$E=\frac{\rho _S}{2\epsilon _0}=\frac{5\times 10^{-6}}{2\times 8.85\times 10^{-12}}=2.824\times 10^5Volt/m$

We have given potential difference V = 105 volt

We know that potential difference is given by $V=Ed$

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3 years ago

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Hatshy [7]

Answer:

(a) Both the charges are positive or negative.

(b) Teh value of each charge is 1.53 x 10^-5 C.

Explanation:

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stretch, y = 0.033 m

(a) Let the charge on each sphere is q and they repel each other so the nature of charge of either sphere may be both positive or both negative.

(b) The electrostatic force is balanced by the spring force.

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