Consider water flowing through a cylindrical pipe with a variable cross-section. the velocity is v at a point where the pipe diameter is 1.0 cm. at a point where the pipe diameter is three times larger, the velocity is:
one third the initial velocity
the same as the initial velocity
three times larger than the initial velocity
one ninth the initial velocity
nine times larger than the initial velocity

The place you get your hair cut has two nearly parallel mirrors 6.00 m apart. as you sit in the chair, your head is 2.00 m from the nearer mirror. looking toward this mirror, you first see your face and then, farther away, the back of your head. (the mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) how far away does the back of your head appear to be?

In order for the bug to fly through the air a force has to push the bug forward. identify this force. how does the bug produce

Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and