The voltage-current relationship for the circuit shown in Fig P1.17 is given by Ohm’s law as V=I R, where V is the current in amps, and R is the resistance of the resistor in ohms. (a) Sketch the graph of I as a function of V if the resistance is 5 ohms.
(b) Find the current I if the applied voltage is 10 V.

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?

An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of