A3.0 kg block is acted upon by a horizontal force f(x) = 26.0 - 9.0x where the force is measured in newtons if x is measured in meters. the coefficient of kinetic friction between the block and the flat surface is 0.20. the block is initially at x = 0 m. what distance must the block travel if the net work done on the block by f(x) and friction combined is to be exactly zero?

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