Bryan Masterson slam dunks a basketball. His coach observes that Bryan's 5 points feet are im above the floor at his peak height. At what upward velocity
must Masterson leave the floor to achieve this?

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Ineed the answer to question 1 , i’m desperate

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