Bone has a density of 1.8 g/cm³. what mass of bone is required for a bone graft involving 6.0 cm³ of bone tissue?
a. 0.3 g
b. 3.3 g
c. 4.2 g
d. 10.8 g

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!