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Rina8888 [55]
3 years ago
10

the nucleus and the subatomic particles in the nucleus, what is the charge of the nucleus of an atom?

Physics
1 answer:
pychu [463]3 years ago
4 0
The Nucleus contains Protons and Neutrons.

The Neutrons does not have a charge.

The Protons are positively charge.

Hence the charge on the Nucleus, would be the charge of the proton, which is positive.

Hence Nucleus is Positively Charged.
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Roughly how many stars are in the Milky Way Galaxy?
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there are many stars in the milky way galaky

Explanation:

uncountable stars

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Hecto the Mornar a fursa explain i magnituse of the force acting right angle to the moment arm​
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<h2>~<u>Solution</u> :-</h2>
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3 years ago
How much thermal energy is needed to melt 1.25 kg of water at its melting point? Use Q = masslaten heat of fusion.
Amanda [17]

Answer:

Latent heatnof fusion = 417.5 J

Explanation:

Specific latent heat of fusion of water is 334kJ.kg-1.

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The amount of heat required to change 1 kg of solid to its liquid state (at its melting point) at atmospheric pressure is called Latent heat of Fusion.

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8 0
3 years ago
A hockey puck is sliding across a frozen pond with an initial speed of 9.3 m/s. It comes to rest after sliding a distance of 42.
kondaur [170]

Answer:

The coefficient of kinetic friction between the puck and the ice is 0.11

Explanation:

Given;

initial speed, u = 9.3 m/s

sliding distance, S = 42 m

From equation of motion we determine the acceleration;

v² = u² + 2as

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a = -86.49/84

|a| = 1.0296

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μk is the coefficient of kinetic friction

N is the normal reaction = mg

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g is the gravitational constant = 9.8 m/s²

μk = a/g

μk = 1.0296/9.8

μk = 0.11

Therefore, the coefficient of kinetic friction between the puck and the ice is 0.11

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