<span>B. During the early 1900s, the populations of US cities located on the West Coast were the highest, but by 2000, the populations of cities located in the Midwest became greater than those of the East Coast</span>
Radius of earth as given in question = 6400 km
Height of the air balloon = 200 m
= 0.20 km
Now
Let us assume the distance up to which one can see from the balloon = d
Then
d=sqrt [<span><span><span>(R+h<span>)2</span>−<span>R2]
</span></span></span> = sqrt [</span><span><span>2Rh+<span>h^2]
= sqrt [2 (6400 * 0.20) + (0.20)^2]
= sqrt [(2 * 1280) + 0.04]
= sqrt [ 2560 + 0.04]
= sqrt [2560.04]
= 50.6 km
A person in the balloon can see up to a distance of 50.6 km. I hope the answer has helped you.</span></span></span>
I put texture and I got it right
Answer:
False
Explanation:
Its called River Basin or drainage Basin
go for it!!
Answer:
107,768 ft³/hr
Explanation:
Given that :
FIELD A:
Runoff Coefficient (C1) = 0.55
Field size (s1) = 3 acre
FIELD B:
Runoff Coefficient (C2) = 0.75
Field size (s2) = 5 acre
Rainfall intensity (I) = 5.5 in/hr
We need to convert ;
Field size to ft²
1 acre = 43560 ft²
s1 = 3 acre = 43560 * 3 = 130,680 ft²
s2 = 5 acre = 43560 * 5 = 217,800 ft²
Rainfall intensity to ft/hr
1 inch = 0.0833 ft
5.5 in/ hr = (0.0833 * 5.5) ft/hr = 0.45815 ft/hr
Peak flow :
(C1 * s1 * I) + (C2 * s2 * I)
(0.55 * 130680 * 0.45815) + (0.75 * 217800 * 0.45815)
32929.0731 + 74838.8025
= 107767.8756 ft³/hr
