A125g steel ball with a kinetic energy of .25j rolls along a horizontal track how high up an inclined track will the ball roll if friction can be ignored

Describe uniform velocity and variable velocity in short

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c