Question

a Example 2.6 A bullet of mass 20 g is horizontally fired with a velocity 150 m s' from a pistol of mass 2 kg. What is the recoil velocity of the pistol? ​

Answer 1

Answer:

Regularly biting your nails can cause your teeth to shift out of place, which can require correctional braces or a retainer. Nail biting could also cause your teeth to break or could damage your tooth enamel. The germs could also potentially infect, or cause irritation, to your gums