Someone made a copy of an analog wave and a digital wave. Compare the copies with the original waves. Then, explain which type of wave is a more reliable way to encode and transmit information.

The density would be 1.622

Sorry i dont understand the question can you rephase it?

The internal energy of the system we can term it as total potential energy and kinetic energy. energy flows out of the surrounding from the system then we can say that the internal energy of the final state is lower than its initials. the sign of  δesystem is negative.δesystem = efinal - einitial=-ve  efinal  ∠einitial.