Power transfer in a string

Examples on velocity OF wave|| Power transfer on a string || Intensity OF a transverse wave || Examples on power transfer & intensity || Potential energy in a string || Phase defference

A standing wave y = A sin kx .cos omegat is established in a string fixed at its ends. (a) What is value of instantaneous power transfer at a cross section of the string when the string is passing through its mean position? (b) What is value of instantaneous power transfer at a cross section of the string when the string is at its extreme position? (c) At what frequency is the power transmitted through a cross section changing with time?

Maximum power transfer to external circuit in watt will be

An electric kettle connected to the 230V mains supply draws a current of 10 A. Calculate: (a) the power of the kettle. (b) the energy transferred in 1 minute.

A sinusoidal transverse wave travel on a string. The string has length 8.00m and mass 6.00 g . The wave speed is 30.0 m//s and the wavelength is 0.200 m . (a) If the wave is to have an average power of 50.0 W , what must be the amplitude of the wave? (b) For the same string, if the ampitude and wavelength are the same as in part (a) what is the average power for the wave if the tension is increased such that the wave speed is doubled?

Transfer RNA

Statement I : A standing wave pattern is formed in a string . The power transfer through a point ( other than node and antinode) is zero always. Statement II : At antinode is perpendicular to this velocity .