Answer:
The methodology employed by Galileo contributed to the development of Physics by find moons of Jupiter. (I think)
sorry if it's wrong
The acceleration of the first block (4 kg) is -9.8 m/s².
The given parameters:
- <em>Mass of the first block, m₁ = 4.0 kg</em>
- <em>Mass of the second block, m₂ = 2.0 kg</em>
The net force on the system of the two blocks is calculated as follows;

where;
- <em>T </em><em>is the tension in the connecting string due weight of the first block</em>

Thus, the acceleration of the first block (4 kg) is -9.8 m/s².
Learn more about net force on two connected blocks here: brainly.com/question/13539944
46.6666 that is the mass number
Explanation:
14 divided 3.0
Theories are usually backed up with a lot of evidence. If the evidence is well studied then it is useful information.