With what force does the earth attract an aquarium weighing 3 kg with 7 liters of water to take the density

| June 2, 2021 | education

With what force does the earth attract an aquarium weighing 3 kg with 7 liters of water to take the density of water for 1000 kg.

The gravitational force of the Earth is calculated by the formula F = mg, where m is the mass of the body, g = 9.8 N / kg is the acceleration of gravity. To calculate the force of gravity, you need to determine the total body weight (the mass of the empty aquarium + the mass of the water). We find out the mass of water using the formula m = ρV. The volume of liters must be expressed in cubic meters V = 7 liters = 0.007m ^ 3. Let’s find out the mass of water.
m = 1000 * 0.007 = 7kg. Then the total mass of a full aquarium is 10 kg (3 kg of an empty aquarium + 7 kg of water). Find out the power of gravity
F = 10 * 9.8 = 98H.



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