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gladu [14]
3 years ago
6

**20points**

Physics
2 answers:
sergij07 [2.7K]3 years ago
8 0
A new element is formed.
polet [3.4K]3 years ago
3 0
B) a new element is formed
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What is the wavelength of a light of frequency 7.21?
erik [133]
MEMORIZED E=h*v h=6.626x10-34J*s INFORMED v=7.21x1014S-1CALCULATE E=h*v  E=(6.626x10-34J*s)*(7.21x1014s-1) The "s" cancels out. s-1=1/s so you get s/s  so you are left with Solution 4.78 10-19 J OR .478 aJ  <span>Apex - 467 nm ^.^  hopefully thats the correct thing</span>
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Dark matter is missing stars that have fallen from the sky.<br> true or false
spayn [35]

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The answer to this question is False

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A girl playing tug-of-war with her dog pulls the dog a distance of 8.0m by exerting a force at an angle of 18° with the horizont
AnnZ [28]

Answer:

25 N

Explanation:

Work is a product of force and perpendicular distance moved.

W=Fd where F is force exerted and d is perpendicular distance.

However, for this case, the distance is inclined hence resolving it to perpendicular so that it be along x-axis we have distance as dcos\theta

Therefore, W=Fdcos\theta

Making F the subject of the formula then

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3 years ago
The curved line PQR is the velocity-time graph for a car starting from rest.
Elden [556K]
His. Curbs I b h bs. H b u b
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3 years ago
How many air molecules are in a 13.0×12.0×10.0 ft room (28.2 L=1 ft3)? Assume atmospheric pressure of 1.00 atm, a room temperatu
aksik [14]

Answer:

1963.93 Moles

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Convert the volume into liters:1560\times28.2l=43992l

#From our conversion ratio above, we get the volume of air molecules in moles as:

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Hence, the volume of air molecules is 1963.93 Moles

4 0
2 years ago
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