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sergeinik [125]
3 years ago
14

A satellite circles the earth in an orbit whose radius is six times the earth's radius. The earth's mass is 5.98 1024 kg, and it

s radius is 6.38 106 m. What is the period of the satellite
Physics
1 answer:
makkiz [27]3 years ago
5 0

Answer:

The period of the satellite is 12.05 s.

Explanation:

The period of the satellite can be determined by;

T = \sqrt{\frac{4\pi ^{2} r^{2}  }{GM} }

where: T is the period, r is the radius of the orbit, G is the gravitation constant and M is the mass of the Earth.

Given that: r = 6 x (6.38 x 10^{6}) = 38.28 x 10^{6} m, M = 5.98 x  10^{24} kg, G = 6.673 x 10^{-11} Nm^{2}/ kg^{2}.

Therefore,

T = \sqrt{\frac{4*(\frac{22}{7} )^{2} (38.28*10^{6}) ^{2}  }{6.673*10^{-11} *5.98*10^{24} } }

  = \sqrt{\frac{5.79*10^{16} }{3.99*10^{14} } }

  = \sqrt{145.113}

  = 12.0463

T = 12.05 s

The period of the satellite is 12.05 s.

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And so, the current through the circuit is (using Ohm's law):

I=\frac{V}{R_{eq}}=\frac{120 V}{1200 \Omega}=0.1 A

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2) 4 W and 8 W

The power dissipated by each bulb is given by the formula:

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Answer:

Charge on each metal sphere will be 8\times 10^{8}C

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As both the spheres are connected by rod so half -half electron will be distributed on both the spheres.

So electron on both the spheres =\frac{10^{12}}{2}=5\times 10^{11}electron

We know that charge on each electron e=1.6\times 10^{-19}C

So charge on both the spheres will be equal to q=1.6\times 10^{-19}\times 5\times 10^{11}=8\times 10^{8}C

So charge on each metal sphere will be equal to 8\times 10^{8}C

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