A piece of corroded metal alloy was found in a submerged ocean vessel. It was estimated that the original area of the plate was 800cm^2 and that approximately 7.6kg had corroded away during the submersion. Assuming a corrosion penetration rate or 4 mm/yr, estimate the time of submersion in years. The density of the alloy is 4.5g/cm^3.

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

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

With physics question #5? for any !