Aneutral spherical conductor of radius a has a concentric cavity of radius b < a, and is centred on the origin. charge q is then transferred to the sphere by contact . a) determine the electric field everywhere (i. e. as a function of radius r).
b) determine the potential everywhere.
c) what is the capacitance of the sphere?
d) how would these answers change if an additional charge was placed at the origin?

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

You want to lose weight and have been trying to decide which type of fad diet is best for you. you ask your doctor, who responds that a. fad diets are a temporary fix but generally don't have any side effects b. fad diets can be used several times a year to maintain a healthy weight c. fad diets can be risky for your health and, in the long run, do not work d. fad diets should never be used one right after the other; there should be a break between them select the best answer from the choices provided. a b c d

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?