Answer:
The number of calories needed is 6c.
Explanation:
The amount of energy 
needed to raise the temperature 
of water of mass 
is
where 
is the specific heat capacity of water.
Putting in numbers into equation (1), we get:
which is the number of calories needed.
Answer:
b
Explanation:
because with no pole there is no role
Thermal equilibrium is when a hot and cold object (could also be air) come in contact with each other and over time become the same temperature.
thermal equilibrium is reached when both objects are the same temperature.
