A ship cruises forward at vs = 4 m/s relative to the water. On deck, a man walks diagonally toward the bow such that his path forms an angle θ = 20 ◦ with a line perpendicular to the boat’s direction of motion. He walks at vm = 2 m/s relative to the boat.

Natural forces that can alter ecosystems include seasons and climate changes. t or f

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

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential