NEED ASAP WILL GIVE BRAINLIEST
What is the change in internal energy if 90 J of thermal energy is added to a
system, and the system does 30 J of work on the surroundings?
A. 60J
B. -130J
C. 130J
D. -60J​

Respuesta :

Answer:

a- the answer is 60J

apologies if its wrong

Answer: A) 60

Explanation: