When a beam of light passes at an oblique angle into a material of lower optical density, the angle of
incidence is
a. less than the angle of reflection.
b. greater than the angle of refraction.
c. greater than the angle of reflection.
d. less than the angle of refraction

An uncharged nonconductive hollow sphere of radius 18.0 cm surrounds a 12.0 µc charge located at the origin of a cartesian coordinate system. a drill with a radius of 1.00 mm is aligned along the z axis, and a hole is drilled in the sphere. calculate the electric flux through the hole.

Aquantity of gas has a volume of 1.5 m3 and an absolute pressure of 95 kpa. when the gas is compressed to a volume of 0.5 m3, what is the new absolute pressure of the gas? (assume that there’s no change in temperature.)

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f