Answer:
v ≈ 8.5 km/h
Step-by-step explanation:
Since the diameter of the wheel is 3 m the radius will be r = 1.5 m.
Use the radius of the water wheel to find it's circumference C:
[set r = 1.5 m]
⇒
⇒ m
One revolution of the water wheel corresponds to meters so the angular velocity 15 rmp (revolutions per minute) corresponds to:
= /min
Using this result, the speed of the river in kilometers per hour will be:
× ×
⇒
⇒ ≈ km/h
Answer:
The answer is D
Step-by-step explanation:
This is so because the opposite of a positive number is that number but negative. Hope this helps!
Answer:
short for mathematics, also "Master of arts in theology"
Step-by-step explanation:
Answer:
Down below
Step-by-step explanation:
P = 2L + 2W
P = 108
L = 2W+12
108 = 2(2W+12) + 2W
108 = 4W + 24 + 2W
108 = 6W + 24
84 = 6W
14 = W
W = 14
If the width is 14, then the length is twice that plus 12, or 38
38 + 38 + 14 + 14 = 108