Object sliding across the floor initially moves with a speed of 13.20 meters per second, to the right. After 5.3 seconds, its speed is 3.80 meters per second, to the right. (a) What is the object's acceleration during this time? m/s2, to the right
(b) What is the coefficient of kinetic friction between the object and the floor?

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

you go to your settings preference and in the end youll see sth that says "i want to delete my acc" click on it and u'll acc will be deleted but u have to wait.

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s