George Tafari

HEAT AND THERMAL ENERGY: Fahrenheit, Celsius, and Kelvin Scales

What relationship exists ( if any ) between heat and temperature? The concepts of heat and temperature are akin to the relationship between the number of moles of a substance and the molarity ( M = moles / L ) of an associated solution. Recall that a mole is a quantity of substance ( atomsContinue reading “HEAT AND THERMAL ENERGY: Fahrenheit, Celsius, and Kelvin Scales”

ENERGY AND MOMENTUM: ( x ) and ( y ) Vector Components of Motion.

Q: A steel ball of mass 10 kg moves due East at 5.0 m/s. It collides with a rubber ball of mass 5.0 kg moving at 10 m/s due North. After the collision the steel ball moves at an angle of 60° East of North with a speed of 4.0 m/s. What is the velocityContinue reading “ENERGY AND MOMENTUM: ( x ) and ( y ) Vector Components of Motion.”

HEAT AND THERMAL ENERGY: Thermal Expansion of Solids and Liquids.

The subatomic structure of solids and liquids have a profound influence upon how they react to a transfer of thermal energy. Solids have a relatively fixed or rigid structure, whereas the molecular structure of liquids allows for greater expansion and compression. Measurements have shown that ( in general ) a linear relationship exists between theContinue reading “HEAT AND THERMAL ENERGY: Thermal Expansion of Solids and Liquids.”

THE STOCK MARKET: The Future of 3-D Printing and Gene Therapy.

With the exception of artificial influences, the cost of goods and services are determined by supply and demand. Demand is sometimes categorized as either ” elastic ” or ” inelastic “. A good or service that has inelastic demand satisfies the basic tenets of Abraham Maslow’s hierarchy of needs . The evolution of artificially intelligent machines hasContinue reading “THE STOCK MARKET: The Future of 3-D Printing and Gene Therapy.”

GAS LAWS: Boyle’s Law, Charle’s Law, and Gay-Lussac’s Law.

GAS LAWS: Boyle’s Law, Charles’s Law, and Gay-Lussac’s Law The most easily observable macroscopic traits of a gas are its pressure ( P ), volume ( V ), mass ( m ), and temperature ( T ). Pressure is measured in Pascals ( or psi ) and has units of force ( N ) perContinue reading “GAS LAWS: Boyle’s Law, Charle’s Law, and Gay-Lussac’s Law.”