A thin, square, conducting plate 52.5 cm on a side lies in the xy plane. A total charge of 3.25 10-8 C is placed on the plate. You may assume that the charge density is uniform. (a) Find the charge density on each face of the plate. (b) Find the electric field just above the plate. (c) Find the electric field just below the plate.

Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?