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T A mixture of two liquids of equal volume is made, the one has a relative density of 0,8 and the other a density of 980 kg/m³. What will the weight of 2 500 litres be? [21830 N]

T A mixture of two liquids of equal volume is made, the one has a relative density of 0,8 and the other a density of 980 kg/m³. What will the weight of 2 500 litres be? [21830 N]

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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1.3 A mixture of two liquids of equal volume is made, the one has a relative density of 0,8 and the other a density of 980 kg/m³. What will the weight of 2 500 litres be? 1.4 1.5 1.6 15 1.7 [21830 N] A solid block of stone with a relative density 4 is broken down and crushed to an average size of 20 mm. If the stone originally had a volume of 50 m³, how many truck loads with a volume of 2 m³, will it take to transport the crushed stone if 25 of the crushed stone has a mass of 80 kg. Has the relative density changed? How much? Why? [32 truck loads] Use table 1.4.2 to determine the kinematic viscosity of crude oil with a density of 855 kg/ m³ at temperatures of 20°C and 100°C. [9,357 x 10-6 m²/s; 3,275 x 10-6 m²/s] Air is used in a sensitive gyroscope to keep the metal bearing surfaces apart. Will the friction losses in the bearing be higher, lower or the same if the temperature of the bearing increases? A widely used S.I. unit for kinematic viscosity is centi- stoke cSt. One stoke is equal to a cm²/s. Determine the conversion factor between cSt and m²/s.
Transcribed Image Text:1.3 A mixture of two liquids of equal volume is made, the one has a relative density of 0,8 and the other a density of 980 kg/m³. What will the weight of 2 500 litres be? 1.4 1.5 1.6 15 1.7 [21830 N] A solid block of stone with a relative density 4 is broken down and crushed to an average size of 20 mm. If the stone originally had a volume of 50 m³, how many truck loads with a volume of 2 m³, will it take to transport the crushed stone if 25 of the crushed stone has a mass of 80 kg. Has the relative density changed? How much? Why? [32 truck loads] Use table 1.4.2 to determine the kinematic viscosity of crude oil with a density of 855 kg/ m³ at temperatures of 20°C and 100°C. [9,357 x 10-6 m²/s; 3,275 x 10-6 m²/s] Air is used in a sensitive gyroscope to keep the metal bearing surfaces apart. Will the friction losses in the bearing be higher, lower or the same if the temperature of the bearing increases? A widely used S.I. unit for kinematic viscosity is centi- stoke cSt. One stoke is equal to a cm²/s. Determine the conversion factor between cSt and m²/s.
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