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jekas [21]
3 years ago
8

Plz help with atomic question giving brianly.

Physics
2 answers:
GalinKa [24]3 years ago
7 0

Answer:

The atomic number of an atom equals the number of protons in the nucleus of that atom. The atomic number of an element is always a positive integral value.

Explanation:

Eddi Din [679]3 years ago
6 0
Atomic number equals the number of protons or the number of electrons

hope this helps
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How do we determine the conditions that existed in the very early universe? A We can only guess at the conditions, since we have
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Answer:

D By looking all the way to the cosmological horizon, we can see the actual conditions that prevailed all the way back to the first instant of the Big Bang.

Explanation:

Astrophysicists are able to determine the conditions that existed in the early universe, by using instruments such as telescopes to observe and study cosmic horizons. More ideas about the early universe can be found from the thermal light present in cosmic backgrounds.

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3 years ago
If the area of an iron rod is 10 cm by 0.5 cm and length is 35 cm. Find the value of resistance, if 11x10^-8 ohm.m be the resist
malfutka [58]

Answer:

Resistance of the iron rod, R = 0.000077 ohms    

Explanation:

It is given that,

Area of iron rod, A=10\ cm\times 0.5\ cm=5\ cm^2 = 0.0005\ m^2

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We need to find the resistance of the iron rod. It is given by :

R=\rho\dfrac{L}{A}

R=11\times 10^{-8}\times \dfrac{0.35\ m}{0.0005\ m^2}

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So, the resistance of the rod is 0.000077 ohms. Hence, this is the required solution.

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