(a) 423 J
The power of the battery is the ratio between the total energy stored (E) and the time elapsed (t):
However, the power is also the product of the voltage (V) and the current (I):
Linking the two equations together,
Since we know:
V = 9.0 V
We can calculate the total energy:
(b) 
dollars
The battery has a total energy of E = 423 J. (2)
1 Watt (W) is equal to 1 Joule (J) per second (s):
so 1 kW corresponds to 1000 J/s:
Multiplying both side by 1 hour (1 h):
and 
, so
So we find the conversion between kWh and Joules. So now we can convert the energy from Joules (2) into kWh:
And since the cost is $0.0660 per kilowatt-hour, the total cost will be
dollars
Answer:
False
Explanation:
The collaborative learning is not a type of learning that focuses on individual learning. This type of learning focuses on joint learning between two or more individuals that act as a team. The collaborative learning is a method that encourages the two or more individuals to work together, to capitalize on each other's skills and resources for the benefit of the whole, for the team. This type of learning has its own supporters and critics, as some consider it as excellent way to develop the team work and closer bonds between the people, while others argue that it is destroying the potential of the individual.
<span><u>Answer</u>
c). random internal motion of atoms and molecules.
<u>Explanation </u>
Diffusion is the movement of particles from a region of high concentration to region of low concentration. The rate of diffusion can be increased by increasing amount of temperature but this is not its primary cause. Diffusion is primarily caused by movement of molecules or atoms in a substances. Form the choices given, the correct answer is c. random internal motion of atoms and molecules.
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