Answer:
17.9 m/s
Step-by-step explanation:
Volume of the slick = 0.5 x π r² h--------------------------------- (1)
Where r = radius of slick
h = thickness of slick, 10⁻⁶m
If 0.5m³ of oil leaked, then the radius of the semicircular slick can be calculated from equation (1)
V = 0.5 x π r² h
0.5= 0.5 x π x r² x 10⁻⁶
r² = 10⁶/ π
r = 10³/√π
dV/dt = πrh dr/dt + 0.5π r² dh/dt----------------------------------- (2)
Asumming the film thickness is constant , equation (2) becomes
dV/dt = πrh dr/dt-------------------------------- (3)
dV/dt = 0.1m³/day
r= 10³/√π
dr/dt= rate of expansion of the slick
Substituting into (3);
0.1 = π x 10³/√π x 10⁻⁶ x dr/dt
dr/dt = 0.1 x 10⁶/ ( π x 10³/√π)
= 17.9479 m/s
≅ 17.9 m/s
Answer:
Please check the explanation.
Step-by-step explanation:
As we have to determine a positive angle less than 360 degrees that is conterminal with 540 degrees.
so
540° - 360° = 180°
The resulting angle of 180° is positive, less than 360°, and coterminal with 540°.
65-9=56
56 divided by 8 is 7
So they will need 7 tents
Answer:
The perimeter of the triangle is 
Step-by-step explanation:
Let
we know that
The perimeter of triangle is equal to
the formula to calculate the distance between two points is equal to
step 1
Find the distance AB
substitute in the formula
step 2
Find the distance BC
substitute in the formula
step 3
Find the distance AC
substitute in the formula
step 4
Find the perimeter
substitute the values
Answer:
-3+-4
Step-by-step explanation:
