What is the velocity of light in meters per second in a material with an index of 2.0?

The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg

What is the role of the water cycle in maintaining freshwater levels in lake and rivers?