Why Does My Satellite Orbit Calculation Not Match the Expected 1.8 Hour Period?

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SUMMARY

The discussion centers on calculating the altitude required for a satellite to achieve a circular orbit around the Earth with a period of 1.8 hours. The formula used, r = (GMT^2/4π²)^(1/3) - Radius of the Earth, is correct but requires careful attention to unit consistency. Participants emphasized the importance of using meters, seconds, and kilograms to avoid discrepancies in the calculations. Ensuring proper unit conversion is crucial for accurate results.

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smw1016
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At what altitude will a satellite complete a circular orbit of the Earth in 1.8 hours?

i used r=(GMT^2/4pi^2)^1/3 -Radius of the earth.

but I am keep getting wrong answer please help
 
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I think that equation is correct. You may want to double-check the units: is everything in terms of m, s, and kg? (I.e., not km for example.)
 

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