A small fly of mass 0.25 g is caught in a spider's web. The web vibrates predominately with a frequency of 4.6 Hz .What is the value of the effective...

A small fly of mass 0.25 g is caught in a spider's web. The web vibrates predominately with a frequency of 4.6 Hz .What is the value of the effective spring stiffness constant k for the web? At what frequency would you expect the web to vibrate if an insect of mass 0.50 g were trapped?