The specific heat capacity of aluminum is 0.897 J/g°C. To calculate the energy required to heat 0.5kg of aluminum by a certain temperature change, you would use the formula:
Energy = mass x specific heat capacity x temperature change
If you have the temperature change, you can plug the values into the formula to find the total energy in joules.
Datamass=m=5 kg acceleration=a=50m/sforce=F=?FormulaF=ma SolutionF=5 multiplied by 50 F=250 N
The 1kg magnet will exert a greater force on the 0.5kg piece of steel, causing them to move towards each other. The 0.5kg steel piece will accelerate faster towards the magnet due to the greater force acting on it by the magnet.