Suppose the tourist in question #1 instead threw the rock with an initial velocity of 8.0m/s (down). determine the velocity and displacement of the rock at 4.0 s (rememberthe v; is down and must become a -8.0 m/s)

Ahuge (essentially infinite) horizontal nonconducting sheet 10.0 cm thick has charge uniformly spread over both faces. the upper face carries +95.0 nc/m2 while the lower face carries -25.0 nc/ m2. what is the magnitude of the electric field at a point within the sheet 2.00 cm below the upper face? (ε0 = 8.85 × 10-12 c2/n · m2)