Calculating Honeybee's Electrostatic Charge

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A honeybee in active flight can acquire an electrostatic charge of 93.0 picoCoulombs (pC), which is equivalent to 93 x 10^-12 Coulombs. To calculate the number of electrons transferred to produce this charge, the formula N = Q/e is used, where Q is the total charge and e is the charge of a single electron (1.602 x 10^-19 Coulombs). By substituting the values, the calculation reveals that approximately 581 trillion electrons must be transferred. The unit pC represents picocoulombs, a measure of electric charge. This information clarifies the relationship between the charge on the honeybee and the number of electrons involved.
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Measurements show that a honeybee in active flight can acquire an electrostatic charge as great as 93.0 pC.
Q1 is How many electrons must be transferred to produce this charge?
my proposed ans using the formula f=k e
after rearranging equation e= 93pC * ./8.99 *10^9 = ?(the ans)
but i do not know what pC unit is and not sure if doing right. pls point me in the right direction. thanks
 
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hotstuff said:
Measurements show that a honeybee in active flight can acquire an electrostatic charge as great as 93.0 pC.
Q1 is How many electrons must be transferred to produce this charge?
my proposed ans using the formula f=k e
after rearranging equation e= 93pC * ./8.99 *10^9 = ?(the ans)
but i do not know what pC unit is and not sure if doing right. pls point me in the right direction. thanks
\mbox{93 picoCoulombs} \ = \ 93 \, \times \, 10^{-12} \ Coulombs
\mbox{charge on 1 electron} \ = \ 1.602 \, \times \, 10^{-19} \ Coulombs
\mbox{number electrons transferred} \ = \ \frac{93 \, \times \, 10^{-12} \ Coulombs}{1.602 \, \times \, 10^{-19} \ Coulombs}
 


The unit pC stands for picocoulombs, which is a unit of electric charge equal to 10^-12 coulombs. To solve this problem, we can use the formula Q = Ne, where Q is the total charge in coulombs, N is the number of electrons, and e is the elementary charge (1.6 x 10^-19 coulombs). So, to find the number of electrons needed to produce an electrostatic charge of 93.0 pC, we can rearrange the equation to N = Q/e. Plugging in the values, we get N = 93.0 pC / (1.6 x 10^-19 C) = 5.81 x 10^17 electrons. This means that approximately 581 trillion electrons must be transferred to produce an electrostatic charge of 93.0 pC on a honeybee in active flight. Hope this helps!
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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