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myrzilka [38]
3 years ago
5

Help help help help help

Physics
1 answer:
GalinKa [24]3 years ago
7 0
There are 7 significant digits
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What is the period of a blender blade that spins around 400 times in 5.0s
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Answer:

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P = 1/f = 1/(80/sec) = .0125 sec   period of revolution

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3 years ago
1) The smallest part of an element that behaves like the element is the atom.
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3 0
3 years ago
Why x ray is called an electromagnetic wave<br>​
Dahasolnce [82]
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7 0
2 years ago
A 2.5-L tank initially is empty, and we want to fill it with 10 g of ammonia. The ammonia comes from a line with saturated vapor
Alex17521 [72]

Answer:

592.92 x 10³ Pa

Explanation:

Mole of ammonia required = 10 g / 17 =0 .588 moles

We shall have to find pressure of .588 moles of ammonia at 30 degree having volume of 2.5 x 10⁻³ m³. We can calculate it as follows .

From the relation

PV = nRT

P x 2.5 x 10⁻³ =  .588 x 8.32 x ( 273 + 30 )

P = 592.92 x 10³ Pa

3 0
3 years ago
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