An alarm clock is a technological system. identify each major component of this system.

i don't want the answer, i just an explanation on what i'm suppose to do.

If you want to change the pitch of a sound, you have to change the

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.

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion