Dierdre drew a diagram to compare the three types of mirrors. A Venn diagram with 3 intersecting circles. One labeled convex. One labeled Concave. One labeled plane. There is an X in the convex circle only. There is a Z in the overlap section of convex and plane. There is a Y in the overlap section between the convex and concave circle. Which labels belong in the areas marked X, Y, and Z?

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?