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Nesterboy [21]
4 years ago
14

How much have jellyfish populated since 2015?

Physics
2 answers:
Readme [11.4K]4 years ago
7 0
1 million ( estimated ) 


i hope this helps!
My name is Ann [436]4 years ago
4 0
About a mil sience 2014-2015
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The answer is "1.01 \times 10^{-13}"

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Using the law of conservation for energy. Equating the kinetic energy to the potential energy.

KE=U=\frac{kqq'}{r}\\\\

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\to r=\frac{kqq'}{KE}\\\\

=\frac{k(2e)(79e)}{KE}\\\\=\frac{k(2)(79)e^2}{KE}\\\\=\frac{9.0\times 10^9 \ N \cdot \frac{m^2}{c}(2)(79)(1.6 \times10^{-19} \ C)^2}{(2.25\ meV) (\frac{1.6 \times 10^{-13} \ J}{1 \ MeV})}\\\\

=\frac{9.0\times 10^9 \times 2\times 79\times 1.6 \times10^{-19}\times 1.6 \times10^{-19} }{(2.25 \times 1.6 \times 10^{-13}) }\\\\=\frac{3,640.32\times 10^{-29}}{3.6 \times 10^{-13} }\\\\=\frac{3,640.32}{3.6} \times 10^{-16}\\\\=1011.2 \times 10^{-16}\\\\=1.01 \times 10^{-13}

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How much force is needed to accelerate an object of mass 90 kg at a rate of 1.2 m/s2
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