An electrical heater is immersed in some melting ice that is contained in a funnel, as shown in the figure below.
The heater is switched on and, when the ice is melting at a constant rate, the mass 
of ice melted in 5.0 minutes is noted, together with the power 
of the heater. The power of the heater is then increased. A new reading for the mass of ice melted in 5.0 minutes is recorded when the ice is melting at a constant rate. Data for the power and the mass are shown in the table below.
Complete the table above to determine the mass melted per second for each power of the heater.
Use the data in the completed table to determine
a value for the specific latent heat of fusion 
of ice,
the rate 
of thermal energy gained by the ice from the surroundings.
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or 
or 
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