Four point charges are at the corners of a square. They all have equal magnitude, but two are positive and two are negative. Each of them creates an electric field of magnitude E at the centre of the square. What is the total field at the centre of the square? a. Depends on the exact placement of the charges around the square. b. E С. 2E d. 0 4E e.

Q: 146.88 What is The answer in 2 significant figures?

A: The value 146.88 can be written as,

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Q: What is the units for 0.0298, 101.74 and 19.264.

A: According to the given problemgiven equation of wave

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A: Given: The given details are, Two spherical drops of mercury each have a charge of 0.13 nC and a…

Q: incorrect. ahhhh

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A: Given data:  Two numbers 6.12 and 4.009 Required: The number of significant figures

Q: how did you get L=0.0228

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A: The zero after a decimal point is counted as a significant figure.

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Q: A diver m diver's a

A: Number of revolutions made by the diver,                                                         n =…

Q: 2.31 was , thanks

A:

Q: .. (a) Find the scalar product of the vectors A and B given in Exercise 1.360. (b) Find the angle…

A: The given vectors are A→=4i^+7j^B→=5i^-2j^

Q: its not 2.42

A:

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.