(b) 
We can actually solve first part (b) the problem. In fact, we know that the electric field strength at the surface of the a sphere is given by
where
k is the Coulomb's constant
Q is the charge on the surface of the sphere
R is the radius
For this sphere, the radius is half the diameter, so
We also know that the maximum charge is the value of charge deposited at which the electric field of the sphere becomes equal to the breakdown electric field, so
Solving the formula for Q, we find the maximum charge:
(a) 
The maximum potential of a charged sphere occurs at the surface of the sphere, and it is given by
where we already found at point b)
and we know that
R = 0.215 m
Solving for V, we find:
1. Because the cart on the coaster must get all of its power from this first hill.
2. It must be smaller because if it was bigger the cart would roll backwards without enough power.
3. an upward climb that is too steep.
I answered the first 3 but try to do the last two by yourself. They are very easy once you figure it out. Try searching the definition of the main points. :)
Acceleration = (change in speed) / (time for the change)
Change in speed = (speed at the end) - (speed at the beginning).
Change in speed = (10 m/s) - (zero) = 10 m/s
Time for the change = 3 sec
Acceleration = (10 m/s) / (3 sec)
<em>Acceleration = (3 and 1/3) m/s²</em> or 3.333 m/s²
Regional metamorphism is a type of metamorphism in which the minerals and the textures of the rocks are changed or altered due to the effect of pressure and heat over a wide area or region.
This type of metamorphism often results in metamorphic rocks that are strongly foliated.
Metamorphism usually occurs in the folds of thrust mountain belts.
Answer: You would most likely find regional metamorphism associated with a mountain belt.
