A 2-m taut string is plucked at its centre producing vibrations with fundamental frequency of 40 Hz, a)Calculate the velocity of the transverse wave propagating in the string.
[ v = 160 m s-1]

b)At what position should the string be plucked to produce vibrations at
frequency 160 Hz?
[ 0.25 m from one end]

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

Newtons view of arrangement of the universe

Aheavy piece of hanging sculpture is suspended by a90-cm-long, 5.0 g steel wire. when the wind blows hard, the wire hums at its fundamental frequency of 80hz. what is the mass of the sculpture?