Sphere - practice for 14 year olds
Number of problems found: 103
- Calculate 4171
Calculate the volume of a sphere with a diameter of 15 cm. - How many 9
How much percent volume remains of a sphere if the diameter decrease 3×? - The volume
The volume of the sphere is 1 m³. What is its surface? - Fit ball
What is the size of the surface of Gymball (FIT - ball) with a diameter of 65 cm?
- 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×? - Surface 4588
What is the volume of a sphere with a surface area of 113.04 square meters? - Sphere A2V
The surface of the sphere is 241 mm². What is its volume? - Sphere radius
The radius of the sphere we reduce by 1/3 of the original radius. How much percent does the volume and surface of the sphere change?
- Hollow sphere
Calculate the weight of a hollow stříbrné sphere (density 10.5 g/cm³) if the vnitřní diameter is 15 cm and wall thickness is 1 mm. - Iron ball
The iron ball weighs 100 kilograms. Calculate the volume, radius, and surface if the iron's density is h = 7.6g/cm³. - Sphere
The sphere's surface is 12100 cm², and the weight is 136 kg. What is its density? - Calculate 8881
A solid wooden ball made of beech wood weighs 800 g. Calculate its diameter if the wood density is pi = 750 kg/m3 - Density 3961
The volume of the Sun is 1.4x10 per 18 km cubic, and the weight is 2x10 per 30 kg. What is the average density? (in kg/m cubic)
- The ball
The ball has a radius of 2m. What percentage of the surface and volume is another sphere whose radius is 20% larger? - Diameter 41221
How many shots with a diameter of 2 mm can a gunsmith cast from 1 kg of lead? The density of lead is 11.4 g / cm3 - Diameter 3962
The diameter of the atomic nucleus is 10 to -12cm. How many atoms would fit on a 1 mm line if they could be arranged close together? - Centimeter 7821
What should a sweet tooth choose if he wants more chocolate: a package containing 200 pieces of solid chocolate balls with a diameter of 1 centimeter or a hollow ball with an outer diameter of 10 cm made of 5 mm thick chocolate? - Sphere floating
Will a hollow iron ball float with an outer diameter d1 = 20cm and an inside diameter d2 = 19cm in the water? The iron density is 7.8 g/cm³. (Instructions: Calculate the average sphere density and compare it with the water density. )
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