O A ring made up of equal semicircular section of cast inn and castutool with two air gaps of olmm and 0.25mm respectively has across sectional area
of 400 cm? and
a mean diameter of sm. The ring is uniforanly wound with a coil
41200tums II the relative permeability of cast iron and cost osteel aro 280061d
400 respectively, determine the corrent required to produce a Flor of lomub in
ring.
the​

1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car

Wo small variable-thrust jets are actuated to keep the spacecraft angular velocity about the z-axis constant at ? 0 = 1.16 rad/s as the two telescoping booms are extended from r1 = 1.18 m to r2 = 4.69 m at a constant rate over a period of 124 seconds. the small 19-kg experiment modules at the ends of the booms may be treated as particles, and the mass of the rigid booms is negligible. determine the necessary thrust t for each jet as a function of time where t = 0 is the time when the telescoping action is begun. after you have the general expression for t, answer the questions. show work.