The period of physical changes to sex characteristics that marks the beginning of adolescence in males and females is Puberty.
Answer:
BBbbb
Explanation:
B is the correct answer:))))
The moon dosent revolve around earth as the earth rotates the moon stays in the same place
<u>Answers</u>
1) 3,840 N
2) 80 m
<u>Explanations</u>
Centripetal force is the force that maintenance objects that are moving in a circular motion.
F = mv²/r
= (1500 × 16²)/100
= (1500×256)/100
= 384000/100
= 3,840 N
2) F = (mv²)/r
6000 N = (1200 × 20²)/r
r = (1200 × 400)/6000
= 480,000/6000
= 80 m
