3 years ago

If an isotope has 8 protons and 10 neutrons in it's nucleus, what is it's atomic mass?

1 answer:

8 0

The atomic mass is always equal to the sum of protons and neutrons in the nucleus. If you add the number of protons and neutrons (8 + 10) = 18 you will find that the atomic mass is 18.

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Who was the decline in the anchovy of peru blamed on

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<span> The failure of the anchovy harvest in 1972 was blamed on El Niño.</span>

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3 years ago

If an object 18 millimeters high is placed 12 millimeters from a diverging lens and the image is formed 4 millimeters in front o

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The correct answer is letter A. 6 millimeters. <span>If an object 18 millimeters high is placed 12 millimeters from a diverging lens and the image is formed 4 millimeters in front of the lens, the height of the image is 6 millimeters.
</span>
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3 years ago

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2 years ago

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The 8 kg block is then released and accelerates to the right, toward the 2 kg block. The surface is rough and the coefficient of

natita [175]

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3.258 m/s

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$U=\dfrac{1}{2}kx^2\\\Rightarrow U=\dfrac{1}{2}\times 263\times 0.7^2\\\Rightarrow U=64.435\ J$

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The speed of the 8 kg block just before collision is 3.258 m/s

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3 years ago

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