Water droplets forming on the outside of a cold glass of water on a hot, summer day is a example of which part of the water cycl
1 answer:
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Answer:
The number of electrons is
(D) is correct option.
Explanation:
Given that,
Battery capacity = 750 mA-h
Time t= 8 hours
Time t'=3 hours
We need to calculate the battery capacity
We need to calculate the number of electrons in 1 C Li
Using formula for number of electron
We need to calculate the number of electron in 2700 C
The total number of electrons battery can deliver in 8 hours
We need to calculate the number of electron in 3 hours
Using formula of number of electrons
Put the value into the formula
Hence, The number of electrons is
Answer:
Explanation:
Kinetic energy is given by the following equation:
, where
is mass in
and
is velocity in
.
Since the cell phone's mass is given in grams, we need to convert this into kilograms:
.
Therefore, the kinetic energy of the cell phone is:
.