Find the surface area of this composite solid. 3 m
base
length = 4 m
base
width = 4 m
height = 5 m
length = 4 m
width = 4 m
A. 120 m2
B. 136 m2
C. 152 m2
D. 104 m2

Amass weighing 16 pounds stretches a spring 8/3 feet. the mass is initially released from rest from a point 2 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a damping force that is numerically equal to 1/2 the instantaneous velocity. find the equation of motion if the mass is driven by an external force equal to f(t)=cos(2t).