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Likurg_2 [28]
3 years ago
6

Three charges are arranged in an equilateral triangle with sides of 4 cm. The coordinates and corresponding charge values are as

follows: +4q at (-2,0); +2q at (2,0); -q at (0,a). The elementary charge of an electron is given by q = -1.602 x 10^-19 C.
a) Determine the y-coordinate a of the third charge

b) Determine the electric field at the centre of the equilateral triangle

c) Determine the torque that acts on the dipole and the work done to align the dipole depicted in the picture the center of the equilateral triangle with the resulting field at the corner. The dipole exhibits a dipole ...?
Mathematics
1 answer:
lisov135 [29]3 years ago
6 0
To determine the answer of Part A draw the equilateral triangle and the to determine the coordinates of of the third charge use that triangle.
To calculate the gravitational field strength in part B from each of the charges use the following equation.

E=kcq/r2

If you would add those values then you can use the symmetry about the y axis to make the vector addition a litter easier.<span />
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A piece of wire is 7/8m long broke into two piece one piece is 1/4 m long how long is the other one ?​
hjlf

Answer: 5/8m

Step-by-step explanation:

From the question, we are informed that a piece of wire is 7/8m long and broken into two piece. We are further told that one piece is 1/4 m long.

The length of the other piece of wire would be calculated as:

= 7/8 - 1/4

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3 years ago
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:Answer:

You may want to use an online graphing calculator to help with this problem. :)



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3 years ago
Mina wore a pedometer on her foot for 3 hours. She recorded the number of steps she walked for each hour. The first hour she too
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Mina took 2,986 steps on the third hour.

Step-by-step explanation:

With the information provided, you know that Mina took a total of 9,245 steps in three hours and as you know the quantity of steps she took on the first and second hour, you can subtract the steps she took on the first and second hour from the total amount of steps to determine the steps she took on the third hour:

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