SOLUTION: The weight of a synthetic ball varies directly with the cube of its radius. A ball with a radius of 2 inches weighs 1.20 pounds. Find the weight of a ball of the same material wi
Algebra.Com
Question 32590: The weight of a synthetic ball varies directly with the cube of its radius. A ball with a radius of 2 inches weighs 1.20 pounds. Find the weight of a ball of the same material with a 3-inch radius.
Answer by mukhopadhyay(490) (Show Source): You can put this solution on YOUR website!
W=kr^3
1.20=8k
=> k = .15
So, W = .15r^3
When r=3 inch, W = .15*27 = 4.05 pounds
RELATED QUESTIONS
The weight of a synthetic ball varies directly with the cube if its radius. A ball with... (answered by Alan3354)
The weight of a synthetic ball varies directly with the cube of it radius. A ball with a... (answered by ewatrrr)
The weight of a synthetic ball varies directly with the cube of its radius. A ball with a (answered by jorel1380)
The weight of a synthetic ball varies directly with the cube of its radius. A ball with a (answered by stanbon)
The weight of a synthetic ball varies directly with the cube of its radius. A ball with a (answered by greenestamps)
a sphere whose radius is 2 inches weighs 8 pounds what is the weight of a sphere of the... (answered by Alan3354)
find the radius of a ball with a volume of 41 cubic... (answered by richwmiller,Greenfinch)
The weight of a cylindrical can of pea soup varies jointly with the height of the can... (answered by gksetu)
the cost of a pizza varies directly as the square of its radius. If a pizza with a 6... (answered by Theo,greenestamps)