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3 years ago

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

Physics

2 answers:

kondaur [170]3 years ago

4 0

Answer: The correct statements are "They point away from a positive charge" and "They never cross".

Explanation:

Electric field lines are the regions around the charged particle in which the electric force can be experienced.

The properties of the electric fields are as follows:

(1) The two electric field lines never cross each other. Otherwise, it will point to different direction at a point.

(2) The electric field is directed outward for the positive charge.

(3)The electric field is directed inward for the negative charge.

Therefore, the correct statements are "They point away from a positive charge" and "They never cross".

pochemuha3 years ago

3 0

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

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If v be the velocity before the contact with the ground and v₁ be the velocity of bouncing back

$\frac{v_1}{v}$ = e ( coefficient of restitution ) = $\frac{1}{\sqrt{10} }$

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$\frac{v_1}{v} = \sqrt{\frac{h_1}{6.1} }$

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$e^n = \sqrt{\frac{h_1}{6.1} }\times \sqrt{\frac{h_2}{h_1} }\times... \sqrt{\frac{h_n}{h_{n-1} }$

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