2 years ago

Which of the following is true in regard to a charged atom?

1 answer:

3 0

I believe a charged Atom is an ion. And that a charged atom possess it's charge due to the different number of electrons that it possess. Unlike an uncharged atom or neutral atom, a charged atom may possess more or less than the number of electrons found in an uncharged atom.

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A particle (q = 4.0 mC, m = 50 g) has a velocity of 25 m/s in the positive x direction when it first enters a region where the e

vovangra [49]

Answer:

The speed of the particle is 34.66 m/s.

Explanation:

Given that,

Mass of particle = 50 g

Charge of particle = 4.0 mC

Velocity = 25 m/s

Electric field = 60 N/C

Time = 5.0 sec

We need to calculate the speed in y direction

Using formula of speed

$v=a\times t$

Where, a = acceleration

$v=\dfrac{F}{m}\times t$

$v=\dfrac{qEt}{m}$

Put the value in to the formula

$v=\dfrac{4.0\times10^{-3}\times60\times5.0}{50\times10^{-3}}$

$v=24\ m/s$

We need to calculate the speed of the particle

$v=\sqrt{v_{x}^2+v_{y}^2}$

Put the value into the formula

$v=\sqrt{25^2+24^2}$

$v=34.66\ m/s$

Hence, The speed of the particle is 34.66 m/s.

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2 years ago

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Find the intensity of the electromagnetic wave described in each case. (a) an electromagnetic wave with a wavelength of 630 nm a

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Find the intensity of the electromagnetic wave described in each case.

(a) an electromagnetic wave with a wavelength of 645 nm and a peak electric field magnitude of 8.5 V/m.

(b) an electromagnetic wave with an angular frequency of 6.3 ✕ 1018 rad/s and a peak magnetic field magnitude of 10−10 T.

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A child is holding a cup of hot tea. His mother, a physicist, warns him not to start running with the tea. According to Newton's

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If he stops running the tea is still going to be moving so it will spill on him.

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2 years ago

Accelerations are produced by equal forces or unequal forces?

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Answer: unequal forces

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