13. A sinusoidal wave of frequency f is traveling along a stretched string. The string is brought to rest, and a second traveling wave of frequency 2f is established on the string. What is the wavelength of the second wave?

In the image, the arrow is pointing to a celestial object. which attribute disqualifies the object from being a planet?

Uppose we consider the system of the three capacitors as a single "equivalent" capacitor. given the charges of the three individual capacitors calculated in the previous part, find the total charge qtot for this equivalent capacitor. express your answer in terms of v and c.

Which of the following is not a physical property of mattera. melting pointb. heat of combustionc. viscosityd. boiling point