pe un plan inclinat de unghi alfa= 30 de grade se afla un corp de masa m-=50 kg , asupra caruia actioneaza o forta orizontala F = 294 N . Neglijand frecarile , sa se calculeze acceleratia de miscare a corpului si forta cu care apasa asupra pamantului

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.