The law that states that "the force is directly proportional to the product of charges and inversely proportional to the square of separation between them" is called单项选择题

题目图片
A

a. Gauss's law

B

b. Newton's law

C

c. Ohm's law

D

d. Coulomb's law

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Three charges (–Q, +2Q, –2Q) are placed at the vertices of an equilateral triangle of side length, [math: 1.0 × 10−6 m], as shown below. Q represents [math: 1.0 × 10−10 C].What is the magnitude and direction of the net electrostatic force exerted on charge –Q by both charges +2Q and -2Q? Give your answer in standard form to 2 decimal places without units followed by the direction.Example format: [math: 1.23 × 1045 N Right] must be written as [ 1.23e45 Right ][math: 4.32 × 10−1 N Up] must be written as [ 4.32e-1 Up ]

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Coulomb's Law states that the magnitude of the electrostatic force between two point charges is:

A charge of 2 X 10-7 C is acted upon by a force of 0.1 N. Determine the distance to the other charge of 4.5 X 10-7 C with both the charges in vacuum.

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