The photo shows a pair of figure skaters performing a spin maneuver. The axis of rotation goes through the left foot of the skater on the left. What
action could increase the pair's angular velocity?

How does the image distance (di) of a convex lens compare with the image distance of a concave lens? a. the image distance of the convex lens is positive, and that of the concave lens is negative. b. both are negative for a virtual image. c. both are positive for a virtual image d. the image distance of the convex lens is negative, and that of the concave lens is positive.

Drag each item into the proper state of matter category.

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f