[PHIL 356] - Final Exam Guide - Ultimate 52 pages long Study Guide!

In the figure below, a radar station detects an airplaneapproaching directly from the east. At first observation, the rangeto the plane is d1 = 356 m at 40° above the horizon. The airplaneis tracked for another 123° in the vertical east-west plane, therange at final contact being d2 = 800 m. Find the displacement ofthe airplane during the period of observation.
Magnitude ______ meters
Direction ______° (counterclockwise from east)

Three children, each of weight 356 N, make a log raft by lashing together logs of diameter 0.30m and length 1.80 m. How many logs will be needed to keep them afloat in fresh water? Take the density of logs to be 800 kg/m^3.

Three children, each of weight 356 N, make a log raft by lashing together logs of diameter 0.30m and length 1.80 m. How many logs will be needed to keep them afloat in fresh water? Take the density of logs to be 800 kg/m^3.