CP A large rock that weighs 164.0 N is suspended from the lower end of a thin wire that is 3.00 m long. The density of the rock is 3200 kg/m3. The mass of the wire is small enough that its effect on the tension in the wire can be ignored. The upper end of the wire is held fixed. When the rock is in air, the fundamental frequency for transverse standing waves on the wire is 42.0 Hz. When the rock is totally submerged in a liquid, with the top of the rock just below the surface, the fundamental frequency for the wire is 28.0 Hz. What is the density of the liquid?
Week 3 Notes Tuesday, September 6, 201611:06 AM Important Points ○ LimitingReagent:Reactant used up first in the reaction ○ Theoretical Yield: Is the amount of productthat would result if all the limiting reagent reacted MAXIMUMobtainable result ○ Actual Yield is the amount of product actually obtained out of a reaction. • More on Titrations ○ Titrationcan be usedin the analysis of acid-baseand redox reactions • Physical Characteristicsof Gases ○ Gases assumethe volume and shapeof their containers ○ Most compressiblestate of matter ○ Gases will mix evenly and completelywhen confinedto the same container ○ Much lower densitiesthan liquidsand solids • Pressure ○ 1 pascal(Pa) = 1 N/m^2