Avariable-length air column is placed just below a vibrating wire that is fixed at both ends. the length of the air column, open at one end, is gradually increased from zero until the first position of resonance is observed at =34.2 cm. the wire is 129 cm long and is vibrating in its third harmonic. if the speed of sound in air is 340 m/s, what is the speed of transverse waves in the wire? assume that the displacement antinode in the air column is exactly at the open end.

Which best represents the law of conservation of mass ?

Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.