- Period and amplitude of -2(2(x-pi/4))?

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What kind of resistances do sound waves face while traveling in a medium such that their velocity does not exceed 332m/ sec? How would you find the number of valence electrons in the "f" orbital section (actinides and lanthanide), just by looking at periodic table? A volume of H2SO4 of concentration 10 moldm3 is 10 cm3 , 250 cm3 of water makes up the dilation.what is the concentration of the dilute acid? During short interval of time the speed v in m/s of an automobile is given by v=at3+bt4, the units of A and b are respectively? Solve the following second order differential equations using undetermined coefficients