2 years ago

The mystery of matter part 1 out of thin air

Physics

1 answer:

Fittoniya [83]2 years ago

7 0

Answer : whats your question v

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A long, nonconducting cylinder (radius = 6.0 mm) has a nonuniform volume charge density given by αr2, where α = 6.2 mC/m5 and r

erastovalidia [21]

Answer: 2.80 N/C

Explanation: In order to calculate the electric firld inside the solid cylinder

non conductor we have to use the Gaussian law,

∫E.ds=Q inside/ε0

E*2πrL=ρ Volume of the Gaussian surface/ε0

E*2πrL= a*r^2 π* r^2* L/ε0

E=a*r^3/(2*ε0)

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3 years ago

What is the wavelength in nm of a light whose first order bright band forms a diffraction angle of 30 degrees, and the diffracti

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The wavelength is 3500 nm.

Explanation:

d= $\frac{1}{700 lines per mm} = 0.007mm = 7000 nm$

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λ= unknown

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d sinθ = nλ

λ = $\frac{7000 nm sin 30}{1}$

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bagirrra123 [75]

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Which statements about electric field lines are correct? Check all that apply.

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They point towards a negative charge.
They point away from a positive charge.
They never cross.

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3 years ago

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