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Nookie1986 [14]
3 years ago
5

Answer the following questions regarding the equation:

Physics
1 answer:
scoundrel [369]3 years ago
5 0

Explanation:

1) This is a synthesis reaction (two or more reactants combine to form a single product).

2) The coefficients are added to balance the reaction.

3) Adding the states of matter (solid, liquid, gas) will make the reaction more precise.

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23 grams of sodium reacted with 35.5 grams of chlorine. Calculate the mass of the sodium chloride compound formed
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According to law of conservation of mass within a reaction,
The mass of the compound formed is (23+35.5) grams means 58.5 grams of sodium chloride[NaCl] will be formed.
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Why are all bodies in nature electrically neutral? short answer please​
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Science fair project
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Which formula can be used to find the tangential speed of an orbiting object?
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Erica is participating in a road race. The first part of the race is on a 5.2-mile-long straight road oriented at an angle of 25
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Answer:

8.6 miles

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In order to calculate the straight-line distance between the starting point and the ending point, we need to resolve each part of the displacement into two perpendicular directions, let's say horizontal (x) and vertical (y) directions.

In the first part, Erica moves for 5.2 miles 25∘ north of east. Resolving into the two directions:

d_{1x} = 5.2 cos 25^{\circ}=4.7 mi\\d_{1y} = 5.2 sin 25^{\circ} =2.2 mi

In the second part, Erica moves 5.0 miles north, so the components are

d_{2x} = 0\\d_{2y} = 5.0 mi

So the components of the net displacement are

d_x = d_{1x}+d_{2x}=4.7+0 = 4.7 mi\\d_y = d_{1y}+d_{2y} =2.2+5.0 = 7.2 mi

And the magnitude of the net displacement is

d=\sqrt{d_x^2 +d_y^2}=\sqrt{4.7^2+7.2^2}=8.6 mi

8 0
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