Achild standing on a bridge throws a rock straight down. the rock leaves the child's hand at time t = 0 s. if we take upward as the positive direction, which of the graphs shown below best represents the velocity of the stone as a function of time?

How will the system respond to a temperature increase?

What organization and environment is described above?

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