Agirl on a spinning amusements park is 12m from the center of the ride and has a centripetal acceleration of 17 m/s^2. what is the girl's tangential speed?

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.

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?