The equilibrium reaction for calcium sulfate is shown here. What is the effect on the equilibrium reaction if calcium nitrate is added to the solution?
A) The reaction would shift to the left and calcium sulfate would dissolve more readily.
B) The reaction would shift to the right and calcium sulfate would dissolve more readily.
C) The reaction would shift to the left and calcium sulfate would precipitate out of solution.
D) The reaction would shift to the right and calcium sulfate would precipitate out of solution.

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

With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90

70 give a real life example showing how sensory neurons work with the motor neurons