Page 423 in the 8th grade science fusion textbook what at the answers

Physics

1 answer:

balu736 [363]3 years ago

3 0

Go to slader.com and type in the full name of the text book and page number. It should have the andwers

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A. The sound wave will reflect off Buildings and automobiles.

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(a) What is the potential between two points situated 10 cm and 20 cm from a 3.0-μC point charge? (b) To what location should th

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Answer:

(a) 135 kV

(b) The charge chould be moved to infinity

Explanation:

(a)

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$V = -\dfrac{kQ}{r}$

where $k = 9\times 10^9 \text{ F/m}$

Difference in potential between the points is

$kQ\left[-\dfrac{1}{0.2\text{ m}} -\left( -\dfrac{1}{0.1\text{ m}}\right)\right] = \dfrac{kQ}{0.2\text{ m}} = \dfrac{9\times10^9\text{ F/m}\times3\times10^{-6}\text{ C}}{0.2\text{ m}}$