The following table lists the speed of sound in various materials. use this table to answer the question. substance speed (m/s) glass 5,200 aluminum 5,100 iron 4,500 copper 3,500 salt water 1,530 fresh water 1,500 mercury 1,400 hydrogen at 0°c 1,284 ethyl alcohol 1,125 helium at 0°c 965 air at 100°c 387 air at 0°c 331 oxygen at 0°c 316 sound will travel the slowest in air glass aluminum water

An ascending elevator, hanging from a cable, is coming to a stop. part a part complete identify all forces acting on the elevator from the list below. select all that apply. select all that apply. kinetic friction normal force tension weight static friction submitprevious answers correct part b draw a free-body diagram of the object. draw the vectors starting at the black dot. the location and orientation of the vectors will be graded. the exact length of your vectors will not be graded but the relative length of one to the other will be graded.