Aball is spinning in a vertical circle at the end of a string that is 2.0m long. if the ball has a mass of 3.5kg and moves at a constant speed of 8.0 m/s, determine the tension in the string when the ball is at the top and bottom of the loop.

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.

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

Ireally need this answer sombody fast fast