For standing wave on string with fixed two ends (a) write down the speed equation,
(b) list equations for fundamental frequency, nth harmonics frequency and wavelength,
(c) draw 1st, 2nd, and 3rd standing waves patterns.

The consumption of fossil fuels could be

Complete the statement about memory improvement. ( )involves organizing and breaking down information into easier groups to expand capacity. rehearsal is the verbal repetition of information. these techniques are especially important for the improvement of ( ) memory.

In the first law of thermodynamics, triangle e=q-w, what does q stand for