Answer:
<u>note:
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<u>solution is attached in word form due to error in mathematical equation. furthermore i also attach Screenshot of solution in word due to different version of MS Office please find the attachment
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Duracell batteries are an example of an electrochemical cell that is powered between the reaction of Magnesium and Zinc, occurring in basic conditions (alkaline battery). This type of reaction has a precise output of 1.5 volts, and looks like this:
Zn + 2MnO2 ➡️ ZnO + Mn2O3
It’s not rechargeable.
Golf Cart Batteries are an example of an electrochemical cell that is powered by the reaction between Lead and Sulfuric Acid (Lead-Acid battery). This type of reaction occurs on larger scales than an alkaline battery, and thus can generate a variety of powers depending on how many instruments are present within the battery. The reaction looks like this:
PbO2 + Pb + 2H2SO4 ➡️ 2PbSO4 + H2O
This is a rechargeable cell, but is rather prone to discharging by the environment and surroundings of the battery.
        
             
        
        
        
Explanation:
it can be used to show how the parts of the cycle relate to one another
 
        
             
        
        
        
Answer:
mass of the neutron star =3.45185×10^26 Kg 
Explanation:
When the neutron star rotates rapidly, a material on its surface to remain in place, the magnitude of the gravitational acceleration on the central material must be equal to magnitude of the centripetal acc. of the rotating star. 
That is 

M_ns = mass odf the netron star. 
G= gravitational constant = 6.67×10^{-11}
R= radius of the star = 18×10^3 m 
ω = 10 rev/sec = 20π rads/sec
therefore, 

= 3.45185... E26 Kg 
= 3.45185×10^26 Kg 
 
        
             
        
        
        
I’m imagining imagining imagining an imagination...