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 answer would be c. motion and direction

i hope this : )

we need to know the time interval during which the force acts. impulse of force = momentum change