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DeniceSandidge

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Answer:

angular diameter is 1382.04 arcseconds

Explanation:

given data

diameter d = 5 meters

distance D =  3 km = 3000 meter

to find out

angular diameter

solution

we know that angular diameter ( θ ) formula that is  diameter / distance

θ = d/D

put here both value to get  angular diameter

and we know 1 rad = 360/2π and 1 degree  = 60 (arcminutes)  and 1 (arcminutes)   = 60 (arcseconds)

so

angular diameter = 5 / 3000

angular diameter = 0.00666 radian

angular diameter = 0.0067 × 57.3 =  0.383

angular diameter =  0.3839 × 3600

angular diameter =  0.3839 × 3600  

angular diameter is 1382.04

Explanation: