At a fabrication plant, a hot metal forging has a mass of 67.2 kg and a specific heat capacity of 438 j/(kg c°). to harden it, the forging is quenched by immersion in 786 kg of oil that has a temperature of 37.1 °c and a specific heat capacity of 2950 j/(kg c°). the final temperature of the oil and forging at thermal equilibrium is 58.3 °c.
assuming that heat flows only between the forging and the oil, determine the initial temperature in degrees celsius of the forging.

Tm = 1,728.38 °C

Explanation:

mass of metal forging (Mm) = 67.2 kg

specific heat capacity of metal forging (Cm) = 438 J/kg°C

initial temperature of metal forging (Tm) = ?

final equilibrium temperature (Te) = 58.3 °C

mass of oil (Mo) = 786 kg

specific heat capacity of oil (Co) = 2950 J/kg°C

temperature of oil (To) = 37.1 °C

Mm × Cf × (Tm - Te) = Mo × Co × (Te - To)

Tm = + Te

Tm = + 58.3

Tm = 1,728.38 °C

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it

c) power lifting, will be your answer.

,

deku ❤