Where should you place an object on the principal axis in front of a convex mirror to get a virtual, upright, and smaller image?
a anywhere on the principal axis
b only at the focal point on the principal axis
c only between the center of curvature and the focal point on the principal axis
d only between the focal point and the vertex on the principal axis
e only at the center of curvature on the principal axis

Aphysical change is a change in the size, shape,, or stafe of matter true or false

Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?

During the apollo moon missions, astronauts were concerned about the effects of newton's third law of motion when: o a. they ejected waste water, because they were concerned that it would push them off course. o b. they reentered earth's atmosphere, because they were carrying heavy moon rocks. o c. they took off from earth, because a large force was required to generate large acceleration. o d. they detected incoming space debris, because the inertia of the debris could damage their ship.