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Ivahew [28]
3 years ago
12

Im going to give 15 points for this question please answer it

Mathematics
1 answer:
pochemuha3 years ago
6 0
I think it is either 4.41 or 1.84 Sq Ft
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An electret is similar to a magnet, but rather than being permanently magnetized, it has a permanent electric dipole moment. Sup
Bumek [7]

Answer:

In this question, we need to find the magnitude of the electric force on the ball; the answer is 9.21*10^{-3}N.

Step-by-step explanation:

To resolve this question, we're going to need E=\frac{k(2p)}{r3 } that is the magnitude of an electric field in the axis of a dipole at some distance "r" .

where "p" is the magnitude of the electric dipole moment, so in this case p= 1.0*10^{-7} Cm or what is the same 10^{-7}cm; and k is a constant k value is = k=8.99*10^{9} \frac{Nm2}{C2}

now to get the force on the ball we need to use F=qE where E=\frac{k(2p)}{r3 }

so we have

F= q*\frac{k(2p)}{r3 }

for this, "q" is the charge on the ball, so we got 80nC or what si the same 80×10^{-9}C, and r is the distance between the ball and the dipole, r= 25cm= 0.25m (1m=100cm, so we need to divide 25cm into 100 to get it in meters)

Replacing we got:

F=(80×10^{-9})(8.99×10^{9})(2(10^{-7})) / (0.25)^{3}

and calculating this the answer is 9.21*10^{-3}N

4 0
3 years ago
3x² - 12x + 8 when x = -2. ​
stealth61 [152]

Answer:

Use photo math, it will explain literally all the steps

8 0
3 years ago
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Pants cost $18.50 and it is 25% off, what is the cost?
Pepsi [2]
The answer would be $13.875
5 0
3 years ago
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-3/5, 6/5, -12/5 <br>What is the next term of the geometric sequence ?
raketka [301]

ANSWER:

24/5

STEP-BY-STEP EXPLANATION:

We have the following geometric sequence:

s=-\frac{3}{5},\frac{6}{5},\frac{-12}{5}

To know the following term, we must know the common ratio, like this:

\begin{gathered} r=\frac{-\frac{12}{5}}{\frac{6}{5}}=-2 \\ r=\frac{\frac{6}{5}}{-\frac{3}{5}}=-2 \end{gathered}

Therefore, the following term should be:

-\frac{12}{5}\cdot-2=\frac{24}{5}

8 0
1 year ago
Can you answer this for me?
zvonat [6]

Answer:

what

Step-by-step explanation:

there is no attachment

3 0
3 years ago
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