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Ymorist [56]
3 years ago
8

How many neutrons are in an isotope of selenium-83 A. 34 B. 83 C. 49 D. 117

Physics
2 answers:
Hunter-Best [27]3 years ago
8 0
I am pretty sure it is 49.
pishuonlain [190]3 years ago
4 0

Answer:

C.49 is yr ans...

<h2>hope it helps</h2><h2>stay safe healthy and happy....</h2>
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3 years ago
How long will it take a plane to fly 1256km<br> if it travels 500km/hr?
expeople1 [14]

Answer:

<h3>The answer is 2.51 s</h3>

Explanation:

The time taken can be found by using the formula

t =  \frac{d}{v}  \\

d is the distance

v is the velocity

From the question we have

t =  \frac{1256}{500}  \\  = 2.512

We have the final answer as

<h3>2.51 s</h3>

Hope this helps you

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Explanation:

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