Why does it take much longer time and distance to stop a moving ship in water than a moving car on the road

What is the function of the commutator in a dc motor? a. to spin the magnet b. to change direct current into alternating current c. to change alternating current into direct current d. to spin the wire coil

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

What term do psychologists use to designate our personal awareness of feelings, sensations, and thoughts?