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3 years ago

A neutral atom can be negatively charged by???

Physics

1 answer:

IRINA_888 [86]3 years ago

4 0

Answer:

The answer to your question is below.

Explanation:

Atoms are composed by three different subparticles

- protons are small particles positive charged located in the nucleus.

- neutrons are small particles without a charged located in the nucleus.

- electrons are the smallest subparticles and are negatively charged.

In a neutral atom, the amount of positive charges (protons) is equal to the amount of negative charges (electrons) so it does not have any charge.

If a neutral atom gains one or more electrons it would be negative.

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A balloon filled with helium gas has an average density of rhob = 0.22 kg/m3. The density of the air is about rhoa = 1.23 kg/m3.

MissTica

Answer:

$a=g\left(\frac{\rho_a}{\rho_b}-1\right)$

45.03681 m/s²

Explanation:

$F_b$ = Buoyant force

W = Weight of the balloon

$\rho_a$ = Density of air = 1.23 kg/m³

$\rho_b$ = Density of balloon = 0.22 kg/m³

$v_a$ = Volume of air

$v_b$ = Volume of balloon

$F_b=\rho_av_bg$

$W=\rho_bv_bg$

g = Acceleration due to gravity = 9.81 m/s²

The net force acting on the balloon is

$F=F_b-W\\\Rightarrow F=\rho_av_bg-\rho_bv_bg\\\Rightarrow \rho_bv_ba=\rho_av_bg-\rho_bv_bg\\\Rightarrow \rho_bv_ba=v_bg(\rho_a-\rho_b)\\\Rightarrow a=\frac{g}{\rho_b}(\rho_a-\rho_b)\\\Rightarrow a=g\left(\frac{\rho_a}{\rho_b}-1\right)$

The equation is $a=g\left(\frac{\rho_a}{\rho_b}-1\right)$

$a=g\left(\frac{\rho_a}{\rho_b}-1\right)\\\Rightarrow a=9.81\times \left(\frac{1.23}{0.22}-1\right)\\\Rightarrow a=45.03681\ m/s^2$

The acceleration of the balloon is 45.03681 m/s²

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3 years ago

In what way were augusts<br> comte and immanual Kant<br> alike

vodka [1.7K]

1. they were both educated in france
2. they both felt that the end of the monarchy was inevitable
3. they were both artist
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3 years ago

Read 2 more answers

The object experiences two external forces: 60 N to the west and 130 N to the east. What is the net external force?

MArishka [77]

Answer: 70 N to the East

Explanation:

lets assume east is positive and west is negative, since they are in opposite directions the net external force = F1+F2

Net force = (-60) + 130

Net force = 70

Net force = 70 N in the east direction

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3 years ago

A soccer ball is kicked from point Pi at an angle above a horizontal field. The ball follows an ideal path before landing on the

Nutka1998 [239]

Answer:

A. The horizontal velocity vector points to the right & equals v cos Î¸.

Explanation:

The motion describes a parabolic path, where the horizontal speed is constant and the horizontal velocity vector always points to the right and equals v*cos Î¸.

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3 years ago

What determines whether the equilibrium temperature of a mixture of two amounts of water will be closer to the initially cooler

larisa [96]

Answer:

Explanation:

It is determined by the amount of cold or hot water in the mixture to know if it will be closer to been hot or cold.

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3 years ago