find the volume in, cubic centimetres, of the solid shown where h= 12cm, s= 7cm and d= 8cm (round to two decimal places) And don't forget to find the height of the cone and cylinder separate! Also, use the RADIUS (1/2 of the diameter) and 3.14 for Pi.

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).