<img src="https://tex.z-dn.net/?f=%20%5Cgeq%20%20%5Cbeta%20%20%20x_%7B1%7D%20" id="TexFormula1" title=" \geq \beta x

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SashulF [63]

3 years ago

t=" \geq \beta x_{1} " align="absmiddle" class="latex-formula">

Physics

1 answer:

Morgarella [4.7K]3 years ago

6 0

Your question is incomprehensible.

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Scientists were studying three different embryos to determine their relationship to humans. The notes about each embryo are show

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Answer:

The awnser is B

Explanation:

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Which particle is commonly used to initiate a fission chain reaction

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Neutron is commonly used to initiate a fission chain reaction.

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It is proposed that a spaceship might be propelled in the solar system by radiation pressure, using a large sail made of foil. W

Anvisha [2.4K]

Answer:

962291.57928 m²

Explanation:

$P_r$ = Pressure = $2\dfrac{I}{c}$ (full reflection)

I = Intensity = $\dfrac{P}{A}=\dfrac{P}{4\pi r^2}$

P = Power = $3.9\times 10^{26}\ W$

c = Speed of light = $3\times 10^8\ m/s$

M = Mass of Sun = $1.99\times 10^{30}\ kg$

m = Mass of ship = 1500 kg

G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²

Force of radiation is given by

$F_r=P_rA\\\Rightarrow F_r=2\dfrac{I}{c}\times A\\\Rightarrow F_r=2\dfrac{P}{4\pi r^2c} A$

This force will balance the gravitational force as stated in the question

$\dfrac{GMm}{r^2}=2\dfrac{P}{4\pi r^2c} A\\\Rightarrow A=\dfrac{4\pi cGMm}{2P}\\\Rightarrow A=\dfrac{4\times \pi\times 3\times 10^8\times 6.67\times 10^{-11}\times 1.99\times 10^{30}\times 1500}{2\times 3.9\times 10^{26}}\\\Rightarrow A=962291.57928\ m^2$