Understanding The Interrelationship of Supply and Demand
In this learning object you'll examine the supply and demand curves and to demonstrate the effects on equilibrium price/quantity and on price ceilings and floors.
Weight- Volume Relationships: Saturated Density (Metric)
Students read how to determine and calculate the saturated density for a given sample of soil or aggregate, based on the mass-volume relationship. Practice problems complete the activity.
Phase Relationships Between Line-Neutral and Line-Line Voltages
Learners view a demonstration showing that line-neutral voltages and line-line voltages are not in-phase with each other, but have a definite 30-degree relationship.