# Sphere + third power - practice problems

#### Number of problems found: 22

- Find x 2

Find x, y, and z such that x³+y³+z³=k for each k from 1 to 100. Write down the number of solutions. - The ball

The ball has a radius of 2m. What percentage of the surface and volume is another sphere whose radius is 20% larger? - Volume of ball

Find the volume of a volleyball with a radius of 4 1/2 decimeters. Use 22/7 for π - Sphere

The sphere's surface is 12100 cm², and the weight is 136 kg. What is its density? - Sphere A2V

The surface of the sphere is 241 mm². What is its volume? - Sphere fall

How much percent fall volume of a sphere if diameter decreases 3×? - Sphere growth

How many times does a volume of the sphere rise if diameter rises 10×? - Hollow sphere

Calculate the weight of a hollow stříbrné sphere (density 10.5 g/cm^{3}) if the vnitřní diameter is 15 cm and wall thickness is 1 mm. - Plasticine ball

Plasticine balls have radius r_{1}=85 cm, r_{2}=60 mm, r_{3}=59 cm, r_{4}=86 cm, r_{5}=20 cm, r_{6}=76 mm, r_{7}=81 mm, r_{8}=25 mm, r_{9}=19 mm, r_{10}=14 cm. These balls are - Hollow sphere

The steel hollow sphere floats on the water plunged into half its volume. Determine the outer radius of the sphere and wall thickness, if you know that the weight of the sphere is 0.5 kg and the density of steel is 7850 kg/m³ - Wall thickness

The hollow metal ball has an outside diameter of 40 cm. Determine the wall thickness if the weight is 25 kg and the metal density is 8.45 g/cm³. - Balls

Three metal balls with volumes V_{1}=71 cm³ V_{2}=78 cm³ and V_{3}=64 cm³ melted into one ball. Determine its surface area. - Sphere volume formula

If V=4/3 π r³, find the value of V when r = 7, the value of r when V=113 1/7 - Eight

Eight small Christmas balls with a radius of 1 cm have the same volume as one large Christmas ball. What has a bigger surface: eight small balls or one big ball? - Iron sphere

Iron sphere has weight 100 kg and density ρ = 7600 kg/m³. Calculate the volume, surface, and diameter of the sphere. - Centimeter 8324

Calculate the radius of a sphere with a volume of 6.2 dm³. Round to the nearest centimeter. - Ball-shaped 28481

How many m² of material is needed to make a ball-shaped balloon with a volume of 950 m³? - Cube in ball

The cube is inscribed into the sphere of radius 181 dm. How many percent is the volume of cube of the volume of the sphere? - Diameter 21173

The water ball has a volume of 32,500m². How big is its diameter? - Calculate 45991

Calculate the radius of a sphere with the same volume as a cone with a radius of 5cm and a height of 7cm.

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