Two loud speakers are located 4.00 m apart and are playing an in phase tone of 97.0 hz which under conditions of a nominal speed of sound of 340.0 m/s has a wavelength of
3.51 m.
How far from the left speaker would you need to stand to hear the tones from the
two speakers cancel out so that you would hear nothing?

:( asap! list all of the items in the item bank and match the definitions correctly.

Air enters a compressor operating at steady state at 1.05 bar, 300 k, with a volumetric flow rate of 93 m3/min and exits at 12 bar, 400 k. heat transfer occurs at a rate of 15.5 kw from the compressor to its surroundings. assuming the ideal gas model for air neglecting kinetic potential energy effects, determine the power in put in kw.

To protect all four receptacles on a branch circuit that surrounds a swimming pool, you would install which of the following configurations? a. gfci feed-through receptacle at the end of the load's circuit b. gfci-terminated receptacle at the beginning of the load's circuit c. gfci feed-through receptacle at the beginning of the load's circuit and the other receptacles connected to the load side of that receptacle d. gfci-terminated receptacle at each end of the load's circuit