A 2-m taut string is plucked at its centre producing vibrations with fundamental frequency of 40 Hz, a)Calculate the velocity of the transverse wave propagating in the string.
[ v = 160 m s-1]

b)At what position should the string be plucked to produce vibrations at
frequency 160 Hz?
[ 0.25 m from one end]

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.

Most short-period comets do not have randomly oriented orbits because

Which composition of water moves to begin a deepwater current?