A Fixed mass of gas omits 250J at heat energy and contracts at constant pressure of Ix10 Pa from 2.5 from 2.5x10^3m^3 to 1.0x10^-3m^3. what is the change in internal energy U?

The human body stores chemical energy from digested food. some of the chemical energy is converted into mechanical energy when the body moves. which statement best supported by this information

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n