Consider a lens having index of refraction n2 and surfaces with radii R1 and R2. The lens is immersed in a fluid that has index of refraction n1. a. Derive a generalized lens makers equation to replace Equation 34.26 when the lens is surrounded by a medium other than air. That is, when n1 1. b. A symmetric converging glass lens (i.e., two equally curved surfaces) has two surfaces with radii of 40 cm. Find the focal length of this lens in air and the focal length of this lens in water

Technology of Alpine Skiing ME1520 Homework 1. Time of descent and terminal velocity Consider a 90kg skier with a coefficient of drag of 0.5, frontal area of 0.4 m², when the air density is 1.2 kg/m³, and the ski-snow friction coefficient is 0.03, with an initial speed of from an initial speed of 2m/s at point A 1 (path ABC) On a slope that is initially 30deg. a skier...