Ahotel wants to put a fence around a circular spa. the radius of the spa is 5/√2-1 feet. if the fence is built along the immediate edge of the spa, what is the perimeter of the fence? (recall that the
perimeter of a circle is 2πr , where r is the radius of the circle.)

Imagine an isolated positive point charge q (many times larger than the charge on a single proton). there is a charged particle a (whose charge is much smaller than charge q) at a distance from the point charge q. on which of the following quantities does the magnitude of the electric field created by charge q at particle a's position depend? check all that apply.the type of the charge on the charged particle athe relative orientation between q and a (while the distance between q and a is fixed)the specific location of the charged particle a (while the distance between q and a is fixed)the amount of the charge on the point charge qthe specific location of the point charge q (while the distance between q and a is fixed)the distance between the point charge q and the charged particle athe amount of the charge on the charged particle a