Anarrow beam of light from a laser travels through air (n=1.00) and strikes point a on the surface of the water (n=1.33) in a lake. the angle of incidence is 55° . the depth of the lake is 3.0 m. on the flat lake-bottom is point b, directly below point
a. (a) if refraction did not occur, how far away from point b would the laser beam strike the lake-bottom? (b) considering refraction, how far away from point b would the laser beam strike the lake-bottom?

graph slopes whilst gas cools, then it is flat whilst conensation to liquid happens, the coolong liquid then graphs as a slope when it solidifies graph is flat

latent heat

so easy. just google the electromagnetic waves and it’ll pop up.

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force