Jana is observing a young autistic boy in a preschool classroom. her job is to note each time the boy gets up from his chair without being told to do so. jana's method of noting this behavior is known as : shorthand tallying open coding reporting

Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)

(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.

What quantity do units represent in value