What are tiny blood vessel's were but delivers oxygen and nutrients and takes up water

Which type of microscope would allow the viewer to see ribosomes inside a cell?

Explain what makes a passenger in a turning car slide toward the door. critical thinking

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