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kirill [66]
3 years ago
14

1. A 40,000 kg plane is accelerating at a rate of 4m/s2. How much force does the engine put forth?​

Chemistry
1 answer:
mamaluj [8]3 years ago
5 0

Answer:

<em>160000</em>

Explanation:

F=ma

m=40000

a=4

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Number of Mg(OH)2 formula units in 7.40 moles of Mg(OH)2.
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The answer is 4.45 × 10²⁴ units.

To calculate this, we will use Avogadro's number which is the number of units (atoms, molecules) in 1 mole of substance:
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So, we need a proportion:
If 6.02 × 10²³ units are in 1 mole, how many units will be in 7.40 moles:
6.02 × 10²³ units : 1 mole = x : 7.40 moles

After crossing the products:
1 mole * x =  7.40 moles * 6.02 × 10²³ units
x = 7.40 * 6.02 × 10²³ units
x = 44.5 × 10²³ units = 4.45× 10²⁴ unit
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