Abeam of light is incident from air on the surface of aliquid. if the angle of incidence is 40.0° and the angle ofrefraction is 31.0°, find the critical angle for the liquidwhen surrounded by air.
1°
b) a light ray, traveling in air, strikes the surface of abeaker of mineral oil at an angle of 37.5o with thenormal to the surface. the speed of light in mineral oil is 2.17 x108 m/s.. calculate the angle of refraction.
1o

How do the measurements of charge at the different locations on the sphere compare to each other? the charge measurements are different at all locations on the sphere. the charge measurements are virtually not the same at all locations on the sphere except for the charge at the very top and at the very bottom that are equal. the charge measurements are virtually the same at all locations on the sphere except for the charge at the very top. at the top, the conductive sphere has a small disk that is made of different material. the charge measurements are the same at all locations on the sphere. what happens to the charge on the conductive sphere when it is connected to a source of charge such as the electrostatic voltage source? nothing will happen because no charge goes around the surface of the sphere. the charge on the conductive sphere spreads out over the surface of the sphere; being greater in some specific locations on the sphere. the charge on the conductive sphere spreads out uniformly over the surface of the sphere. the charge on the conductive sphere spreads out non-uniformly over the surface of the sphere.

Can anybody me with this? ? (picture included.)

What kind of simple machine is a catapult?