Answer:
The potential at the center of the sphere is -924 V
Explanation:
Given;
radius of the sphere, R = 0.22 m
electric field at the surface of the sphere, E = 4200 N/C
Since the electric field is directed towards the center of the sphere, the charge is negative.
The Potential is the same at every point in the sphere, and it is given as;
-------equation (1)
The electric field on the sphere is also given as;
Substitute in the value of q in equation (1)
Therefore, the potential at the center of the sphere is -924 V
Answer:
<em>Wave-Cut Platform</em>
Explanation:
A wave-cut platform, or shore platform <em>is the thin flat area frequently found at the bottom of a shore cliff or along a river, bay, or sea produced by erosion.</em>
When they become apparent as huge areas of flat rock, wave-cut platforms are often most noticeable at low tide.