Aquartz has an index of refraction of 1.46. diamond has an index of refraction of 2.42. in which material does a light ray entering from air slow down more

Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points

The smallest particle of an element that retains its identity in a chemical reaction. true or false

Ball bearings are made by letting spherical drops of molten metal fall inside a talll tower-called a shot tower- and solidify as they fall. a-if a bearing needs 4.0 s to solidify enough for impact, how high must the tower be? b- what is the bearing's impact velocity?