Una partícula efectúa los siguientes desplazamientos consecutivos: 3.5 m al sur; 8.2 m con 30° noroeste y 15 m al oeste. ¿Cuál es el desplazamiento resultante y cuál es su dirección? (Escala 1cm =1m)

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.

The energy produced as a result of this flow of electrons from atom to atom is called