Answer:
The correct answer is 6-9 months.
Explanation:
According to the research done by Dr. Patricia Kuhl of the University of Washington in Seattle and colleagues at Stockholm University in Sweden, the Massachusetts Institute of Technology and the University of Texas in Austin, babies can perceive and learn the basics sounds of their language when they are 6 months old whereas before this study, it was suggested that they gained this ability when they are around 1 year old. I hope this answer helps.
Answer: The hamstrings are one of the muscles that flexes the knee joints
Explanation:
120N because F =ma. You just multiply the mass and the acceleration.
