1. The problem statement, all variables and given/known data A weight lifter manages to lift a 147 kg weight a distance of 1.1 m. Treat her as a thermodynamic system and find how much heat (in kcal) she must put out if her internal energy decreases by 3620 J during the lift. 2. Relevant equations delta U=Q-W 3. The attempt at a solution -3620= Q-(9.8*147*1.1) Q=-2035.34 I was wondering wut the units of Q are? if it's in joules how do i convert to kcal? Thanks in advance!