Answer:
m1 = 20g (= 0.02 kg)
Mass of pistol, m2 = 2 kg
Initial velocity of the bullet (u1) and pistol (u2) = 0
Final velocity of the bullet, v1 = +150m s-1
Let v be the recoil velocity of the pistol.
Total momentum of the pistol and bullet after it is fired is
= (0.02 kg x 150 m s-1) + (2 kg x v m s-1)
= (3 + 2v) kg m s-1
Total momentum after the fire = Total momentum before the fire
3 + 2v = 0
→v = -1.5 m/s
Answer:solid
Explanation:And a solid the malicules are compact so they can move
The correct answer for this question would be D) Global warming or the fourth option.
He reasoned that there must be a source of positive charge within the atom to counterbalance the negative charge on the electrons.
You should search this up and put your own thoughts into it, it’s always good to learn something new!!
