You are watching a marching band practice outdoors. Near you are two trumpet players, one marching directly towards you and one away from you at the same speed. Each trumpet player is playing an A (440 Hz) and you hear a beat between the two sounds at a frequency of 2 Hz. How fast are the trumpet players marching in m/s?
Details and assumptions
A wire with mass and length is held on the two points and under a tension of Pulse is sent along the wire from at time and pulse is sent along the wire from at time Approximately, at what distance from do the pulses begin to meet?
is stretched by a block with mass at point as shown in the above figure. Point is generating a sinusoidal wave but the amplitude of is small enough to be considered as a node. The distance between and is and the linear density of the string is If the oscillating frequency of is and is setting up sixth harmonic on the string, what is the approximate mass of the block?A string, which is fixed at point
Assumptions and Details
If the linear densities of the heaviest and lightest steel wires of a certain piano are and respectively, what is the approximate ratio of the diameter of the two wires?
What is the approximate speed of a transverse wave in a rope of length and mass under a tension of