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Trava [24]
3 years ago
12

Why Apple drops on the ground

Physics
2 answers:
Alik [6]3 years ago
3 0
Because gravity and it's force pushes an object down
den301095 [7]3 years ago
3 0
Hello there,
If you mean why apples or other objects drop, it is because of gravity. Gravity is from the air around us that pushes objects above the ground down. Hope this helps!
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<u>Assume:</u>

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Part (a):

We know that the charge flow rate is the electric current flow through a wire.

\therefore i = \dfrac{Q}{t}\\\Rightarrow Q =it\\\Rightarrow Q = 3\times 14400\\\Rightarrow Q = 43200\ C\\\Rightarrow Q = 43.200\ kC\\

Hence, 43.2 kC of charge is transported as a result of charging.

Part (b):

We know the electrical energy dissipated due to current flow across a voltage drop for a time interval is given by:

E = Vit\\\Rightarrow E = V\times 3\times 4\\\Rightarrow E = 12V\ Wh\\\Rightarrow E = 0.012V\ kWh\\

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Part (c):

We know that the energy cost is equal to the product of energy expended and the rate of energy.

\therefore \textrm{Cost}=\textrm{Energy}\times \textrm{Rate}\\\Rightarrow C = ER\\\Rightarrow C = 0.012V\times 9\\\Rightarrow C =0.108V\ cents

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