a. Write you understanding about resonance condition for standing waves. Transverse waves travel with a speed of 20.0 m/s on a string under a tension of 6.00 N. What tension is required for a wave speed of 30.0 m/s on the same string?

In the figure below, a string tied over a support at  Q, is stretched by a block of mass m.  Separation L = 1.20 m, linear density μ = 1.6 g/m, ant the oscillator frequency f = 120.0 Hz.  Assume P and Q are nodes.  What mass m allows the oscillator to set up the fourth harmonic on the string?  Determine the wavelength based upon the length and the number of waves shown in the figure.  Then, determine the required tension required to achieve the necessary velocity v=λf and v=(T/μ)0.5.  Then determine the mass necessary to achieve this tension.  T = mg.  Use g = 10 N/kg.

1. A group of curious 9B students are listening to sound generated by standing waves in a tube of air. However, they cannot see the tube itself, so they don't know if both ends of the tube are open or if only one end of the tube is open (and the other closed). They observe a standing wave in which the distance from node to adjacent anti-node is 0.6 m. The frequency is increased until the next harmonic is reached. The new distance from node to adjacent anti-node is 0.4 m, and the frequency increased by 1000 Hz. a) Are both ends of the tube open or only one end? b) Determine which harmonics are being played and determine the length of the tube. c) Now consider a different tube with end conditions different than what you determined in part a. (For example, if you determined both ends were open in part a, then this new tube has one open end and one closed end). What should the length of this tube be such that its fundamental frequency is the same as the tube you considered in parts a and…

answer ASAP would be appreciated