How do you calculate the weight of a hollow sphere?
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How do you calculate the weight of a hollow sphere?
The weight of a hollow brass sphere is 1080.04 grams .
- Given : The inner diameter of sphere = 14 cm. i.e. inner radius = 7 cm (Radius is half of the diameter)
- Formula : Mass = Volume x Density.
- Hence, the weight of a hollow brass sphere = 1080.04 grams.
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What is the density of a hollow sphere?
Alternatively, δV= surface area of the hollow sphere× its thickness. We know that the density of this hollow sphere is f(r), so the mass of the hollow sphere is 4πr2f(r)δr.
How do you find the buoyant force of a sphere?
I calculate the buoyancy force as: Volume of the sphere = Volume of the water displaced (Vdisplaced) = (4/3)πr3. Weight of the displaced water = Buoyancy force (B) = Vdisplaced× density of water.
How do you find the buoyant force of a submerged object?
In general, the buoyancy force on a completely submerged object is given by the formula: FB=Vρg, where V is the volume of the object, ρ is the density of the fluid, and g is gravitational acceleration.
What is a formula for a sphere?
The formula for the volume of a sphere is V = 4/3 πr³. See the formula used in an example where we are given the diameter of the sphere.
What is the formula of hollow hemisphere?
Total surface area of a hollow hemisphere shell can be calculated using the formula, TSA = 2π (r2 r 2 2 + r1 r 1 2) + π(r2 r 2 2 ndash; r1 r 1 2) (or) 3 π r2 r 2 2 + π r1 r 1 2, where, r1 r 1 is the radius of internal hemisphere, and r2 r 2 is the radius of external hemisphere.
How do you find the volume of a hollow circle?
The formula to calculate the volume of a hollow cylinder is given as, Volume of hollow cylinder = π (R2 – r2) h cubic units, where, ‘R’ is the outer radius, ‘r’ is the inner radius, and, ‘h’ is the height of the hollow cylinder.
What is the formula of volume of hollow cylinder?
In case of hollow cylinder, we measure two radius, one for inner circle and one for outer circle formed by the base of hollow cylinder. Suppose, r1 and r2 are the two radii of the given hollow cylinder with ‘h’ as the height, then the volume of this cylinder can be written as; V = πh(r12 – r22)