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tatuchka [14]
3 years ago
8

What velocity must a 1240 kg car have in order to have the same

Physics
1 answer:
Bond [772]3 years ago
6 0

Answer:

90

Explanation:

cause

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The Event Horizon Telescope needs a 22 micro-arcsecond resolution to view the event horizon regions around black holes. If the a
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14869817.395 m

Explanation:

\theta=22 microarcsecond

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Converting to radians we get

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From Rayleigh Criterion

\theta=1.22\frac{\lambda}{D}\\\Rightarrow D=1.22\frac{\lambda}{\theta}\\\Rightarrow D=1.22\frac{1.3\times 10^{-3}}{22\times 10^{-6}\frac{\pi}{180\times 3600}}\\\Rightarrow D=14869817.395\ m

Diameter of the effective primary objective is 14869817.395 m

It is not possible to build one telescope with a diameter of 14869817.395 m. But, we need this type of telescope. So, astronomers use an array of radio telescopes to achieve a virtual diameter in order to observe objects that are the size of supermassive black hole's event horizon.

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Can the boiling point of water exceed 100c
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Superheated water is liquid water under pressure at temperatures between the usual boiling point, 100c (212 F ) and the critical temperature , 374 C (705F) . It is also known as “subcritical water”
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3 years ago
How should you draw the field lines for Earth's magnetic field?
yuradex [85]
A. Coming out near the South Pole and going in near the North Pole
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% of 50 shirts is 35 shirts<br> Your answer math
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Answer:

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7 0
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Sort the statements about heat transfer into the correct columns.
Hoochie [10]

Answer: Conduction- Touch transfer heat and Earth warms air

Convection- liquid/gas transfers heat and warm air rises

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Explanation:

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