An adult A and a child Care pulling horizontally in opposite directions on a wagon. The wagon's mass is m, the adult's leftward force magnitude is FA and the child's rightward force magnitude
is Fc. The wagon accelerates to the right along the ground with no friction.
А
C
TAL

Describe how the fermi level changes with donor level, temperature and contact with p and n type semiconductors

The least penetrating form of radiation is

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.