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Bingel [31]
3 years ago
6

Is (kr) an element a compound or a mixture?

Physics
2 answers:
Xelga [282]3 years ago
8 0

Krypton ... symbol Kr ... is an element.  It's element number 36, because
there are 36 protons in the nucleus of every atom of Krypton. 

Krypton has nothing to do with Superman, except that about 75 years ago,
the creators of Superman thought it was a cool-sounding scientific word,
so they chose it for the name of his home planet.

zvonat [6]3 years ago
4 0
I believe it is a compound of a mixture or or mixture
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M <span>represent mass in kg
</span><span>v represents speed in m/s
</span><span>r represents radius in m

Now, just substitute these into the formula:
</span>F =  \frac{m* v^{2} }{r} =\frac{kg* ( \frac{m}{s} )^{2} }{m} =\frac{kg* \frac{m^{2}}{s^{2}} }{m} = \frac{kg*m^{2}}{s^{2}*m } =\frac{kg*m}{s^{2} }<span>

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In designing circular rides for amusement parks, mechanical engineers must consider how small variations in certain parameters c
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Answer:

Part a)

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Part b)

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Part c)

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Explanation:

Part a)

As we know that force on the passenger while moving in circle is given as

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Part b)

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F = \frac{mv^2}{r}

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Part c)

As we know that time period of the circular motion is given as

T = \frac{2\pi r}{v}

so here if radius is constant then variation in time period is given as

dT = - \frac{2\pi r}{v^2} dv

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