Answer:
x = 3±√5
Step-by-step explanation:
x² - 6x + 4 = 0
x² - 6x + 9 = -4 + 9
(x - 3)² = 5
x - 3 = ±√5
x = 3±√5
90 inches 18 times 5 is 90 and 30 times 3 is 90 so the lowest point which they will be at the height is 90 inches
Answer:
31m/s
Step-by-step explanation:
Using the equation of motion
v² = u² + 2gH
H is the height of fall = 49m
g is the acceleration due to gravity = 9.8m/s²
u is the initial velocity = 0m/s
v² = 0² + 2(9.8)(49)
v² = 960.4
v = √960.4
v = 30.9m/s
v ≈ 31m/s
Hence the velocity of water at the turbine is 31m/s
Answer:
A
Step-by-step explanation: