Aglass plate having an index of refraction is 1.66 is immersed in a certain alcohol. the surface of the glass is inclined at an angle of 44° with the vertical. when a horizontal ray in the glass strikes the interface, you observe that it is at the critical angle. what is the index of refraction of the alcohol?

Match the atomic particles with their characteristics. 1. made of two protons and two neutrons neutron 2. similar to an electron; positive charge neutrino 3. orbits nucleus; negative charge positron 4. bundle of energy; zero charge proton 5. found in nucleus; positive charge meson 6. very unstable; +, -, or zero charge gamma 7. found in nucleus; zero charge electron 8. negative particle; negative charge beta 9. atomic energy converted to mass alpha

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?