Mass + power - practice problems - last page
Number of problems found: 44
- Cube
The cube weighs 11 kg. How weight is a cube of the same material if its dimensions are 3-times smaller? - Sphere
The sphere's surface is 12100 cm², and the weight is 136 kg. What is its density? - Pump
What power does a pump output to move 4853 hl of water to a height of 31 m for 8 hours? - 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.
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