What happens to a ray of light passing through the center of the lens?

A.) It passes through without any deviation.

B.) It converges to the focal point.

C.) It travels parallel to the principal axis.

D.) It diverges away from the principal axis.

What is the maximum acceleration of the wing tips, in units of g?

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage