For Girls it's called estrogen
For boys it's testosterone
They each do different things to the sex and they each come at different time periods of their lives.
Answer:
Explanation:
Given
mass of first and second bullet 
Velocity of two bullets 
velocity of third bullet 
angles between guns is 
Suppose First gun is at
and second is at
and third is at 
therefore
conserving momentum in x-direction

as three bullets club together to become lump





<span>Use this formula:Wavelength=c/v, where c is the speed of light, and v the frequency.
6.33 X 10^-7=3 X 10^8/v
v=3 X 10^8/6.33 X 10^-7
v=4.74 X 10^14 Hertz,</span>
Air resistance is type of contact force as the air should be in contact with the surface of moving
object to ocure air resistance.