Figure 1.1 Do You Use Facebook? Economics is greatly impacted by how well information travels through society. Today, social media giants Twitter, Facebook, and Instagram are major forces on the information super highway. (Credit: modification of “Social Media Mixed Icons – Banner” by…
14.1 Fluids, Density, and Pressure 14.2 Measuring Pressure 14.3 Pascal’s Principle and Hydraulics 14.4 Archimedes’ Principle and Buoyancy 14.5 Fluid Dynamics 14.6 Bernoulli’s Equation 14.7 Viscosity and Turbulence
Learning Objectives By the end of this section, you will be able to: In Applications of Newton’s Laws, which introduced the concept of friction, we saw that an object sliding across the floor with an initial velocity and no applied force…
Learning Objectives By the end of this section, you will be able to: As we showed in Figure 14.27, when a fluid flows into a narrower channel, its speed increases. That means its kinetic energy also increases. The increased kinetic energy…
Learning Objectives By the end of this section, you will be able to: The first part of this chapter dealt with fluid statics, the study of fluids at rest. The rest of this chapter deals with fluid dynamics, the study…
Learning Objectives By the end of this section, you will be able to: When placed in a fluid, some objects float due to a buoyant force. Where does this buoyant force come from? Why is it that some things float…
Learning Objectives By the end of this section, you will be able to: In 1653, the French philosopher and scientist Blaise Pascal published his Treatise on the Equilibrium of Liquids, in which he discussed principles of static fluids. A static fluid…
Learning Objectives By the end of this section, you will be able to: In the preceding section, we derived a formula for calculating the variation in pressure for a fluid in hydrostatic equilibrium. As it turns out, this is a…
Learning Objectives By the end of this section, you will be able to: Matter most commonly exists as a solid, liquid, or gas; these states are known as the three common phases of matter. We will look at each of these…
Figure 14.1 This pressure map (left) and satellite photo (right) were used to model the path and impact of Hurricane Arthur as it traveled up the East Coast of the United States in July 2014. Computer models use force and energy equations…