A 450v , 25hp , 60Hz , four pole delta connected wound rotor induction motor has the following impedance in ohms per phase refered to the stator circuit . R1=0.641 R2=0.332 X1=1.106 X2=0.464 Xm=26.3
1: what is the maximum torque of this motor? At what speed and slip does it occur?.
2: what is the stating torque of this motor?
3: if the rotor resistance is doubled , what is the speed at which the
maximum torque now occur?

Which changes of state do the labels represent? a: b: c:

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.