In an aquarium 30 cm long and 20 cm wide, water is poured up to a height of 25 cm.

univerkov | April 30, 2021 | education

In an aquarium 30 cm long and 20 cm wide, water is poured up to a height of 25 cm. Determine the mass of water in the aquarium.

Initial data: l (length of the aquarium) = 30 cm; s (aquarium width) = 20 cm; h (the height of the water in the aquarium) = 25 cm.

Constants: ρw (fresh water density) = 1000 kg / m3.

SI system: l = 30 cm = 0.3 m; s = 20 cm = 0.2 m; h = 25 cm = 0.25 m.

1) Determine the volume of water in the aquarium: V = l * s * h = 0.3 * 0.2 * 0.25 = 0.015 m3.

2) Calculate the mass of water in the aquarium: m = ρw * V = 1000 * 0.015 = 15 kg.

Answer: The mass of water in the aquarium is 15 kilograms.

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