Calculate the angular diameter ot the moon with these known tacts: moon's linear diameter 3480 km moon's average distance from earth 384,000 km number of arc seconds in 1 radian 2.06 x 10 a) 31 arc seconds b) 187 arc seconds c) 1750 arc seconds d) 1870 arc seconds

answer D. 1870 arc seconds

Explanation:

given data

Moon's diameter d = 3480 km

so radius r = 1740 km

Moon's distance from Earth R = 384,000 km

No of second in 1 radian = 2.06 ×

to find out

angular diameter of the Moon

solution

we know that angular radius is

angular radius =

angular radius =

angular radius = 0.0045 radius

so we can say radius for angular radius = 0.0045 radius

= 2.06 × × 0.0045

= 927

so diameter is = 2 × 927 = 1854 arc s

so it is near about answer D. 1870 arc seconds

the answer is option c.

explanation:

recycled water alludes to the water that being utilized again after it already  used for farming purposes.   this kind of water frequently contains pharmaceutical gathering due to the compound compost that is utilized for the plants is consumed into the water.