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soldi70 [24.7K]
3 years ago
5

Why do mass numbers have a trailing decimal? use the following words describe for credit isotopes protons neutrons electrons in

carbon 13
HELP ME
Physics
1 answer:
Dmitry_Shevchenko [17]3 years ago
3 0

Answer:a number without a decimal are generally not significant. Isotopes are atoms of same element which have the same atomic number but different number of neutrons. Isotopes of elements are represented in the following way: In an atom, the number of protons is equal to its atomic number.. An atom of an element is neutral in nature so atom contains the same number of protons and electrons.

Explanation:

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The correct answer from the choices listed above is the first option. The statement that is true would be that c<span>ompound AB has chemical and physical properties that are completely different from those of A and B. They completely different substances with different properties.</span>
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A ball of mass 6 kg is moving to the right with a velocity of 4 m/s when it strikes a 12 kg green block moving to the left at 5
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Which of the following statements about X-rays and radio waves is not true? Which of the following statements about X-rays and r
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Answer:

X-rays travel through space faster than radio waves.

Explanation:

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X-rays and radio waves are both forms of light, or electromagnetic radiation --> TRUE. They are both types of electromagnetic waves.

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X-rays have shorter wavelengths than radio waves. --> TRUE, as we can see from the table above.

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8 0
2 years ago
A sand mover at a quarry lifts 2,000 kg of sand per minute a vertical distance of 12 m. The sand is initially at rest and is dis
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<h2>E. 3.95kW</h2>

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t = time taken in seconds

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Power = 2000*9.8*12/60

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Minimum rate of power that must be supplied to this machine is 3920Watts or 3.92kW

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