Which of these parameters is directly related to sound frequency? . a: wavelength. b: wave velocity. c: sound intensity. d: sound pitch. e: wave amplitude

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)

How to tell if a molecule is polar or nonpolar with electronegativity

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?