Imagine that a tank is filled with water. The height of the liquid column is 7 meters and the area is 1.5 square meters (m2). What's the force of gravity acting on the column of water?
Imagine that a tank is filled with water. The height of the liquid column is 7 meters and the area is 1.5 square meters (m2). [ The force of gravity acting on the column of water is 102,900 N. Solution: The volume of water is (1.5 m² x 7 m) = 10.5 m³; 10.5 m³ = 10,500 liters; Weight of the water = (10,500 kg) x (9.8 m/s²) = 102,900 newtons. ]
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Updated 122 days ago|9/27/2021 1:28:33 PM
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Imagine that a tank is filled with water. The height of the liquid column is 7 meters and the area is 1.5 square meters (m2). [ The force of gravity acting on the column of water is 102,900 N. Solution: The volume of water is (1.5 m² x 7 m) = 10.5 m³; 10.5 m³ = 10,500 liters; Weight of the water = (10,500 kg) x (9.8 m/s²) = 102,900 newtons. ]
Added 122 days ago|9/27/2021 1:28:33 PM

A block has a volume of 0.07 m3 and a density of 3,500 kg/m3. What's the force of gravity acting on the block (and weight) in the air?
Updated 122 days ago|9/27/2021 1:27:37 PM
A block has a volume of 0.07 m3 and a density of 3,500 kg/m3. The force of gravity acting on the block (and weight) in the air is 2401N.
Solution: Mass = volume x density; gravitational force = mass of the block x gravitational acceleration; f= 0.07x 3500x9.8 = 2401 N.
Added 122 days ago|9/27/2021 1:27:37 PM
A 3.8 kg object is lifted 12 meters. Approximately how much work is performed during the lifting?
Updated 122 days ago|9/27/2021 1:28:10 PM
A 3.8 kg object is lifted 12 meters. 446.9 J work is performed during the lifting, Work done = force * displacement = 3.8*9.8* 12 = 446.9 J.
Added 122 days ago|9/27/2021 1:28:10 PM
A block has a volume of 0.07 m3 and a density of 3,500 kg/m3. What's the force of gravity acting on the block (and weight) in the air? A. 1,715 N B. 2,401 N C. 686 N D. 2,058 N
Updated 122 days ago|9/27/2021 1:29:00 PM
A block has a volume of 0.07 m3 and a density of 3,500 kg/m3. The force of gravity acting on the block (and weight) in the air is 2401N.
Solution: Mass = volume x density; gravitational force = mass of the block x gravitational acceleration; f= 0.07x 3500x9.8 = 2401 N.
Added 122 days ago|9/27/2021 1:29:00 PM
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