A 30 gram piece of iron is heated to 100°C and then dropped into cool water where the iron's temperature drops to 30°C. How many
calories does it loose to the water? (The specific heat of iron is 0.11
cal/g°C).

Q= calories

m = mass

c = specific heat

∆t = temperature difference

Also, Qin = Qout

(as in the amount of energy lost by the iron equals the energy gained by water. the water) so the calories lost is as stated in pict.

well, you would divide 135 by 33 to get your answer. then that is how many seconds it would take. boardman should fly about 132 m or 4.090909090909091 seconds.

cant without the picture! ?