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Vikki [24]
2 years ago
14

What is radioactivity????​

Physics
1 answer:
butalik [34]2 years ago
5 0

Radioactivity is a nuclear phenomenon. It is the process of spontaneous emission of α (alpha particles) or β (beta particles) and γ (gamma particles ) radiations from the nucleus of atoms during their decay.

  • Uranium and radium are the two radioactive substances.

Explanation:

<h3>Hope it helps you!!</h3>

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The particles that make up protons and neutrons are called
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Quark

Explanation:

In the past the proton,neutron and electron were believed to be indivisible. Quarks were later discovered to be particles that make up the proton and neutron. Quarks are known as fast moving points of energy and are usually joined to one another through gluons. Neutron has two down quarks and one up quark while proton has two up quarks and one down quark.

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Peak wavelength of light coming from a star with a temp of 4300k
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3 years ago
A student lifts their 5 kg backpack 2 meters off the floor. How much work does the student do on the backpack?
kirill115 [55]

Answer:

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4 0
3 years ago
Se realiza un experimento en el que se mide el alargamiento de un muelle debido a la acción de una pesa; se trata de comprobar l
mel-nik [20]

Answer:

m = 1,975 m / kg , b = 38.05 m

Explanation:

In this experiment, the elongation is plotted against the applied mass

getting a straight line

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where b would be the initial length of spring let's calculate the slope for which we use two well separated points

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4 0
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