Two in-phase loudspeakers that emit sound with the same frequency are placed along a wall and are separated by a distance of 5.00 m. a person is standing 12.0 m away from the wall, equidistant from the loudspeakers. when the person moves 1.00 m parallel to the wall, she experiences destructive interference for the first time. what is the frequency of the sound? the speed of sound in air is 343 m/s.

Acentrifuge in a medical laboratory rotates at an angular speed of 3,700 rev/min. when switched off, it rotates through 54.0 revolutions before coming to rest. find the constant angular acceleration (in rad/s2) of the centrifuge. your response is within 10% of the correct value. this may be due to roundoff error, or you could have a mistake in your calculation. carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. rad/s2

Thermal radiation gets its name because

What are two examples of phase changes that skip a phase during transition?