4.1 Distinguish between density and relative density The weight of an object is 12 N in air. It has an apparent weight of 8 N when totally immersed in water. The density of water, p=1000 kg-m³. Calculate the relative density of the object. 4.2 A rectangular fish tank measures 45 cm by 60 cm and is 30 cm high. The tank is filled with water to a depth of 25 cm. Calculate: 4.3 a) the pressure at the bottom of the tank due to the water; b) the absolute pressure at the bottom of the tank: c) the force exerted by the water on the bottom of the tank: d) how many litres of water there are in the tank.

4.1 Distinguish between density and relative density The weight of an object is 12 N in air. It has an apparent weight of 8 N when totally immersed in water. The density of water, p=1000 kg-m³. Calculate the relative density of the object. 4.2 A rectangular fish tank measures 45 cm by 60 cm and is 30 cm high. The tank is filled with water to a depth of 25 cm. Calculate: 4.3 a) the pressure at the bottom of the tank due to the water; b) the absolute pressure at the bottom of the tank: c) the force exerted by the water on the bottom of the tank: d) how many litres of water there are in the tank.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter14: Fluid Mechanics

Section: Chapter Questions

Problem 44P: A straightforward method of finding the density of an object is to measure its mass and then measure...

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