Time taken by the rubber-soled shoes to reduce a person's potential from 3.00×10³ V to 100V is 3.91s
The initial potential difference 
is related to the final potential difference 
by
Our target is to find t, so we rearrange equation (1) for t to be
The body has a capacitance 150 pF while the foot has a capacitance 80 pF and both are in parallel connection. So, the equivalent capacitance is
The shoes of the rubber-soled has resistance 
. Plug the values for 
and C into equation (2) to get the time t.
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Answer:
decreasing the surface area.
Explanation:
The rate of reaction or the reaction rate may be defined as the speed or the rate at which the reaction occurs. It is the speed of formation of the products from the reactants. The following factors increases the rate of reaction :
1. by adding a catalyst
2. by increasing the temperature
3. by increasing the pressure
4. by increasing the surface area
5. by increasing concentration
Hence, decreasing the surface area of the reaction reduces the rate of reaction.
No, it's not. It's none renewable source of energy causing carbon dioxide emission and global warming, and climate change.
