3 years ago

Both positive and negative charges will spread the leaves of an uncharged electroscope.

Physics

1 answer:

hoa [83]3 years ago

7 0

The answer is A)TRUE.

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Alex Ar [27]

Answer:

1. the voltage will be 2.35×12.5 = 29.4V

2. the resistance would be 9.0/6.2= 1.45ohms

3. in series they will add up thus 4+8+12= 24ohms

4. in parallel it will be 2.18ohms

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3 years ago

What is the greatest distance an image can be located behind a convex spherical mirror?

Afina-wow [57]

Answer:

Maximum distance of image from mirror is equal to focal length of the mirror

Explanation:

As we know by the equation of mirror we have

$\frac{1}{d_i} + \frac{1}{d_o} = \frac{1}{f}$

here we know for convex mirror

object position is always negative as it will be placed behind the mirror always

while the focal length of the convex mirror is always taken positive

So here we have

$\frac{1}{d_i} + \frac{1}{-d_o} = \frac{1}{f}$

$\frac{1}{d_i} = \frac{1}{d_o} + \frac{1}{f}$

so here maximum value of image distance is equal to focal length of the mirror

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3 years ago

You want to go jogging at a nearby park. your mother says a thunderstorm is five miles away. the safest thing to do in this situ

sdas [7]

Answer:

"find an indoor place to exercise"

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2 years ago

Why is physics used to study stars?

goblinko [34]

Answer:

stars are made of matter

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3 years ago

What is electronegativity?

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electronegativity ☝️☝️☝️answer

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