Answer:
Explanation:
When sand absorbs the electromagnetic waves of the sun it becomes warm through the process of
1 answer:
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Answer:
81.6 ohm
Explanation:
For a cable type conductor, the resistance is given by the following formula:
Where:
The problem doesn't give us additional information about resistivity or the cross section of the wire, so let's assume:
Then, in this case, the resistance of the cable depends only on the length. Therefore, if its resistance was originally 27.2 ohms, if we triple its length, it makes sense that its new resistance is three times the original. Thus:
Explanation:
We assume kinetic and potential energy changes are negligible and there is no work interactions.
a) Taking tank as a system, The energy balance can be define as
The mass balance could be written as
The final pressure in the tank could be defined as following
from standard steam table we know at
b)
From steam table at
initial mass in the tank could be define as
Final mass in the tank could be define as
The amount of steam that has entered the tank
c)
The internal energy in final state could be defined as following
The heat transfer could be defined as following
