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olga2289 [7]
3 years ago
7

40 Newtons

Physics
1 answer:
Kobotan [32]3 years ago
6 0
Although the weight of the spears a different the gravitational forces are the same
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In the nucleus of an atom, there are 18 protons and 20 neutrons. What are the atomic number and mass number of this isotope?
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3 years ago
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Tafu is working with subatomic particles in the physics lab. a positron is traveling in a straight line down the particle accele
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Answer:

Infinity

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When you have a limit approaching infinity one method you can use is to remember that the highest power dominants all of the other ones so when we have (t^2)/t-1 like in your problem, we see that t^2 has the highest power of 2 so if that's going to infinity and it's not being divided by any powers higher than it will just be inifinity.

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3 years ago
A 12.0 g sample of gas occupies 19.2 L at STP. what is the of moles and molecular weight of this gas?​
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At STP, 1 mole of an ideal gas occupies a volume of about 22.4 L. So if <em>n</em> is the number of moles of this gas, then

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If the sample has a mass of 12.0 g, then its molecular weight is

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