Two speakers, 5.0 m apart, are in phase and emit a pure tone of wavelength 4.0 m. 39. What is the closest distance to either speaker, along a line connecting the speakers, where a loud spot (completely constructive interference) is found

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

Explain what will happen if decomposers were apsent from a forest ecoysystem.

Consider a u-tube whose arms are open to the atmosphere. now equal volumes of water and light oil (ρ = 49.3 lbm/ft3) are poured from different arms. a person blows from the oil side of the u-tube until the contact surface of the two fluids moves to the bottom of the u-tube, and therefore, the liquid levels in the two arms are the same. if the fluid height in each arm is 30 in, determine the gage pressure exerted by the person on the oil by blowing.