Ch 1. Basics Multimedia Engineering Fluids MassDensity IdealGas Law Viscosity SurfaceTension VaporPressure
 Chapter 1. Basics 2. Fluid Statics 3. Kinematics 4. Laws (Integral) 5. Laws (Diff.) 6. Modeling/Similitude 7. Inviscid 8. Viscous 9. External Flow 10. Open-Channel Appendix Basic Math Units Basic Equations Water/Air Tables Sections Search eBooks Dynamics Fluids Math Mechanics Statics Thermodynamics Author(s): Chean Chin Ngo Kurt Gramoll ©Kurt Gramoll

FLUID MECHANICS - CASE STUDY

Introduction

Density Measurement

Will it Float or Sink?

High school students in a physics class are asked to measure the mass and volume of two unknown liquids. The raw data collected are summarized in the following table:

 Empty Container Mass (g) Container & Liquid Mass(g) Volume of Liquid (ml) Liquid A 25.0 75.0 50 Liquid B 25.0 44.7 25

Questions

Determine the densities of the two liquids, and identify the liquids. Also, predict if an ice cube and a cork will sink or float in the two liquids.

Approach

• The density of the ice cube is 900 kg/m3, and the density of the cork is 250 kg/m3.

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