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hodyreva [135]
3 years ago
5

Ground-based radio telescopes can collect data from distant objects in space

Physics
2 answers:
sasho [114]3 years ago
6 0

Ground-based radio telescopes can collect data from distant objects in space  during the day or night and in MANY different weather conditions.

BUT ...

-- of course, they have to avoid pointing at the Sun, since the Sun is a loud, humongous source of radio signals !

-- of course, they have to shut down during lightning storms and most rain, because lightning is a loud, humongous source of radio signals, and rain can generate radio static noise.  Rain can also create puddles and unsymmetric wetting inside the radio "dish" antenna, which really messes up the gain and directional pattern of the antenna.    

Arada [10]3 years ago
4 0
Answer is A. Because the telescope are use in night
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3 years ago
A block of mass 0.221 kg is placed on top of a light, vertical spring of force constant 5365 N/m and pushed downward so that the
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The maximum height above the point of release is 11.653 m.

Explanation:

Given that,

Mass of block = 0.221 kg

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Distance x = 0.097 m

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Using stored energy in spring

U=\dfrac{1}{2}kx^2...(I)

Using gravitational potential energy

U' =mgh....(II)

Using energy of conservation

E_{i}=E_{f}

U_{i}+U'_{i}=U_{f}+U'_{f}

\dfrac{1}{2}kx^2+0=0+mgh

h=\dfrac{kx^2}{2mg}

Where, k = spring constant

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x = distance

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Put the value in the equation

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Hence, The maximum height above the point of release is 11.653 m.

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