The wooden cube was given an amount of heat equal to 300 J. At the same time, 400 J was done on it.
| October 24, 2020 | Education
The wooden cube was given an amount of heat equal to 300 J. At the same time, 400 J was done on it. Determine the change in the internal energy of the cube.
U = Q + A = 300 + 400 = 700 J
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.