To solve the problem it is necessary to apply the concepts related to heat flow,
The heat flux can be defined as

Where,
k = Thermal conductivity
A = Area of cross-sectional area
d = Length of the rod
Temperature difference between the ends of the rod
Thermal conductivity of copper rod
Area of cross section of rod
Temperature difference
length of rod
Replacing then,



From the definition of heat flow we know that this is also equivalent

Where,
Mass per second
Latent heat of fusion of ice
Re-arrange to find 





Therefore the mass of ice per second that melts is 0.032g
Answer:
750W
Explanation:
40×10= 400N
work done= force × distance
=400 × 75
=30000 J
Power= work done/ time
= 30000 ÷ 40
= 750 W
In a stronger gravitational field a given mass will have a larger weight.
Answer:
I think the answers March 21