Answer:
0.027 cubic ft/min
Explanation:
Volume of water is V=V(t) Depth of water is h=h(t)
The relationship between V and h is
V=π/3.r2.h
Let
h0= the height of the cylinder = 24ft, r0= the radius of the opening = 10ft.
Since water level (h) rise with respect to flow rate we find an expression for r and substitute into V
r/h = r0/h0= 10/24 = 5/12
r = (5/12) h,
Substitute for r in V
so,
V=1/3.π.(h2)square = 1/3.π. 25/144.(h3)
When
h= 16ft
and dV/dt = 20ft3/min
,
dV/dt =1/3*π*25/144*h3*(dh/dt)
20ft3/min= 1/3*π* 25/144*h3*(dh/dt)
20 = 1/3*π*(16)3.(dh/dt)
Make dh/DT subject of formula
dh/dt=(20*3*144)/(25*π*4096) = 8640/321740.8
=
dh/dt= 0.027 ft3/min
Answer:
the long term, the U.S. standard of living has improved. Still, there are some vital numbers to watch. After five years of the poverty rate going down in the U.S., it rose in 2020. The official U.S. poverty rate was 10.5% in 2019, but in 2020 it was up to 11.4%.
People adapt to great plain regions by locating a near by river because of food and shelter around a substantial stable ecosystems. Which allows high survivability ratings.
Answer:
lifted large numbers of poor people out of poverty
helped many nonpoor people avoid the poverty
hunger they would have experienced had the Green Revolution not occurred.
Explanation:
The answer is definately 7
