Ablock that is 80 degrees is places next to a 20 degree block. the warmer block heats the cooler block by the process a)convection. b)conduction. c) a and b. d) neither a or b

Consider the following position function. find (a) the velocity and the speed of the object and (b) the acceleration of the object. bold r left parenthesis t right parenthesisr(t)equals=left angle 6 t superscript 4 baseline comma 2 t cubed right angle6t4,2t3 for tgreater than or equals≥0