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balu736 [363]
3 years ago
7

The model represents a fluorine (F) atom. What is the mass of the atom?

Physics
1 answer:
castortr0y [4]3 years ago
8 0

Answer:

19

Explanation:

The mass of an atom is found in the nucleus: number of protons + number of neutrons; 9 + 10 = 19

The mass number of fluorine is 19

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An initially stationary object experiences an acceleration of 6 m/s2 for a time of 15 s. How far will it travel during that time
andrew-mc [135]

Answer:

The object will travel 675 m during that time.

Explanation:

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In other words, a body performs a u.a.r.m when its path is a straight line and its acceleration is constant. This implies that the speed increases or decreases uniformly.

In this case, the position is calculated using the expression:

x = xo + vo*t + ½*a*t²

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In this case:

  • x0= 0
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Replacing:

x= 0 + 0*15 s + ½*6 \frac{m}{s^{2} }*(15s)²

Solving:

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3 years ago
A stone is dropped from a cliff. What will be its speed when it was fallen 100 m?
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What does the object below model?
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