Calcite (caco_3) is a crystal with abnormally large birefringence. the index of refraction for light with electric field parallel to the optical axis (called extraordinary waves or e-waves) is 1.4864. the index of refraction for light with electric field perpendicular to the optical axis (called ordinary waves or o-waves) is 1.6584.a.) find the critical angle theta_ce for e-waves in calcite. this was 42.28 degrees. b.) find the critical angle theta_co for o-waves in calcite. i got 38.68 then 35.8 and am still wrong. me find part b.

Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2

F500 j of energy were added to 1 kg of each of these samples, which would experience the least temperature increase?

What is a carrier wave and how does it affect what you hear on the radio