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
1
The flow of electrons from negative to positive.
3
Materials that can easily carry electricity from place to place.
4
Materials that do conduct electricity, just not as well as conductors.
5
Materials that stop the flow of electricity.
2
An object that slows down the flow of electric current but still allows some electric current to move, resulting in some of the energy being converted to heat (thermal energy) or light energy in the process.
Answer:
|F| = 393750 N
Explanation:
Given that,
Total mass of the train, m = 750000 kg
Initial speed, u = 84 m/s
Final speed, v = 42 m/s
Time, t = 80 s
We need to find the net force acting on the train. The formula for force is given by :
F = ma
So, the magnitude of net force is 393750 N.
When an astronaut travels from the earth to the moon, her weight changes, but her mass remains constant. <em>(C ).</em>
It is D because our eye lenses reflect the white light we see and it also reflects the light to a point to where we can see colors and objects clearly... Hope this helps out ^-^''
