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3 years ago

Hii please help i’ll give brainliest if you give a correct answer please please hurry it’s timed

Physics

1 answer:

Zina [86]3 years ago

3 0

Answer: The answer is A for sure

Explanation:

That is, there will be no acceleration. If you are sitting at rest in a chair and the upward push of the chair is equal to the downward pull of gravity, you will stay at rest in the chair. ... You now have an unbalanced force acting on you and therefore, according to Newton's First Law, your motion is going to change.

Plz give brainlest :)

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A charge Q acts on a point charge to create an electric field. Its strength, measured a distance of 40 cm away is 100 N/C. What

KIM [24]

Answer:

$E_2=80N/C$

Explanation:

From the question we are told that:

Initial Distance $d_1=40cm=>0.4m$

Initial Electric field strength $E_1=100N/C$

Final Distance $d_2=20cm=>0.20m$

Generally the equation for Electric field is mathematically given by.

$E=\frac{kq}{d^2}$

$q=\frac{100*(0.4)^2}{K}$

Substituting q for $d=20cm$

$E_2=\frac{k}{0.2}*\frac{100*(0.4)^2}{K}$

$E_2=80N/C$

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3 years ago

In which range is the peak wavelength of a star that is much hotter than the sun most likely to be?

Mazyrski [523]

<span>ultraviolet light for sure is the right answer </span>

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4 years ago

A very long line of charge with charge per unit length +8.00 μC/m is on the x-axis and its midpoint is at x = 0. A second very l

artcher [175]

Answer:

at y=6.29 cm the charge of the two distribution will be equal.

Explanation:

Given:

linear charge density on the x-axis, $\lambda_1=8\times 10^{-6}\ C$

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Since both the linear charges are parallel and aligned by their centers hence we get the symmetric point along the y-axis where the electric fields will be equal.

Let the neural point be at x meters from the x-axis then the distance of that point from the y-axis will be (0.11-x) meters.

<u>we know, the electric field due to linear charge is given as:</u>

$E=\frac{\lambda}{2\pi.r.\epsilon_0}$