Two identical speakers emitting sound at 550 hz are d = 1.5 m apart. the point of total destructive interference closest to the speakers occurs at a point 4 m to the right and 0.8 m above the line of symmetry, which passes perpendicularly through the line joining the two speakers.
draw a diagram to scale and calculate the velocity of the sound waves using the pythagorean theorem to calculate distances exactly.
explain why the small-angle approximation for total destructive interference is d sin î¸ = (n + â½ ) î» where n is an integer.
use the small-angle approximation of part (b) to calculate the sound velocity. find the percentage difference from your answer in part (a).

explanation:

a fuel engine ( known as a gasoline engine in american english )is an internal combustion engine with spark ignition, designed to run on petrol (gasoline) and similar volatile fuels.

the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.