An image formed by a mirror is virtual, upright, the same size as the object, and the same distance from the mirror as the object. which mirror produced the image?
a. flat mirror
b. concave mirror
c. convex mirror
d. spherical mirror

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?

The path of a satellite orbiting the earth causes it to pass directly over two tracking stations a and b, which are 51 miles apart. when the satellite is on one side of the two stations, the angles of elevation at a and b are measured to be 87 degrees and 84 degrees, respectively. (a) how far is the satellite from station a? (b) how high is the satellite above the ground?