An infinite straight wire with radius r carries a current i uniformly distributed over its cross section. the magnetic field at a distance d from the axis of the wire is b. what is the magnetic field a distance 2d from the axis of the wire? both points are inside (2d < r) the wire.(a) both fields are zero.(b) b(c) b/2(d) 2b(e) b/4(f) 4b

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.

The maximum shear stress and maximum flexural stress occur at the same location along a beam subjected to a non-uniform bending load. a)-trune b)- false

The air in an automobile tire with a volume of 0.015 m3 is at 32°c and 140 kpa gage. determine the amount of air that must be added to raise the pressure to the recommended value of 206 kpa gage. assume the atmospheric pressure to be 128 kpa and the temperature and the volume to remain constant.[r-0.287 kj/kgk]