1.in what type of wave is the vibration perpendicular to the direction of travel of the wave.
2.what type of wave vibrates p, arallel to the direction of travel?
3.what type of wave contains compressions and rarefactions?
4.what type of wave is produced when you move one end of a horizontal spring up and
5.what type of wave has a wavelength?

16. a brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 n on him. the mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20m/s2 size 12{1 "." "20"" m/s" rsup { size 8{2} } } {} backward. (a) what is the force of friction between the losing player’s feet and the grass? (b) what force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) draw a sketch of the situation showing the system of interest used to solve each part. for this situation, draw a free-body diagram and write the net force equation.