4. Compare and contrast the properties of the images formed by each mirror type in the
table.
Image Formation
Mirror
Type
Appearance
Placement
Size
Plane
Concave (when the object is located a
distance greater than a focal length
from mirror's surface)
Concave (when object is located a
distance less than the focal length of
the mirror)
Convex

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .