Aclosely wound rectangular coil of 80 turns has dimensions of 25.0 cm by 40.0 cm. the plane of the coil is rotated from a position where it makes an angle of 37.0 ∘ with a magnetic field of 1.30 t to a position perpendicular to the field. the rotation takes 0.0900 s . what is the average emf emf induced in the coil? what is the magnitude of the average emf e induced as the coil is rotated? e= v

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z

Humidity is to blame for that muggy, steamy feeling you experience on some hot summer days. what gas in the atmosphere causes humidity? a) oxygen b) hydrogen c) nitrogen d) water vapor