1: A system is collection of two or more objects but how ca we define an object suppose if we talk about a tennis ball its an object but at atomic level we can say it is a system because it is made of millions of atoms and each atom can be considered as an object
3: The internal energy of a system is identified with the random, disordered motion of molecules; the total (internal) energy in a system includes potential and kinetic energy. ... It is the sum of all the microscopic energies such as: translational kinetic energy. vibrational and rotational kinetic energy
You would look for a blue sign that says food at the top and it would tell you how many miles to the left or to the right it will take to get to that restaurant, which will also include a bathroom, once you get off the expressway.
The boy is being evacuated from his home as a war rages on. He is forced to leave his parents' home and live with another man. This shows how war can affect people's lives.
