Which of the following is not a macromolecule?
a. platelet
b. lipid
c. carbohydrate
d. protein

Find the volume of the ellipsoid x^2+y^2+5z^2=36.

Heat from the sun reaches earth to a. radiation b. convection c. conduction

The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping