A 1.2 kg bucket is held by a string and whirled in a vertical circle. The radius 2 points of the circle is 1.5 m. The speed of the bucket is 12.1 m s -1 at the bottom
of the loop and subsequently, the bucket reached the top of the circle.
12.1 ms
At the bottom of the
loop
58 N
71 N
129 N
187 N

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)