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.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text: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.
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