Assuming ideal gas behavior, determine the speed of sound in refrigerant-134a at 0.8 mpa and 55°c. the gas constant of r-134a is r = 0.08149 kj/kg·k. its specific heat ratio at room temperature is k = 1.108. the speed of sound in refrigerant-134a is m/s.

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

c because the news are a source of information of things that happen on the daily and shows evidence about that particular topic

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).