3 years ago

How much have jellyfish populated since 2015?

Physics

2 answers:

Readme [11.4K]3 years ago

7 0

1 million ( estimated )

i hope this helps!

My name is Ann [436]3 years ago

4 0

About a mil sience 2014-2015

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800 has 1 significant digit.

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Answer:

yes, 800 has 1 significant digit

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How much energy (in joules) is released when 0.06 kilograms of mercury is condensed to a liquid at the same temperature?

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What if the earth was flat

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Which wave has a longer period and how many times, the wave with a frequency of 7000Hz or the wave with a frequency of 21.000Hz?

Nuetrik [128]

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I would say the answer is the wave of 21.000Hz

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2 years ago

An accelerating voltage of 2.47 x 10^3 V is applied to an electron gun, producing a beam of electrons originally traveling horiz

Dmitry [639]

Answer:

6.3445×10⁻¹⁶ m

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m = Mass of electron

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$E=\frac{mv^2}{2}\\\Rightarrow v=\sqrt{\frac{2E}{m}}\\\Rightarrow v=\sqrt{\frac{2\times 2470\times 1.6\times 10^{-19}}{9.11\times 10^{-31}}}\\\Rightarrow v=29455356.08671\ m/s$

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$\Delta =\frac {gt^2}{2}$

Now, Time = Distance/Velocity

$\Delta =\frac {g\frac{s^2}{v^2}}{2}\\\Rightarrow \Delta =\frac{9.81\frac{0.335^2}{29455356.08671^2}}{2}\\\Rightarrow \Delta =6.3445\times 10^{-16}\ m$

∴ Magnitude of the deflection on the screen caused by the Earth's gravitational field is 6.3445×10⁻¹⁶ m

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2 years ago