Answer:
9 m/s
Explanation:
mass of cannon, M = 100 kg
mass of cannon ball, m = 10 kg
velocity of cannon ball, v = 90 m/s
Let the recoil velocity of cannon is V.
Us ethe conservation of linear momentum, as no external force is acting on the system, so the linear momentum of the system is conserved.
Momentum before the firing = momentum after the firing
M x 0 + m x 0 = M x V + m x v
0 = 100 x V + 10 x 90
V = - 9 m/s
Thus, the recoil velocity of cannon is 9 m/s.
Answer: The first one
Explanation:
Because it’s the higher frequency
Answer:
Democritus was the first person to say that everything is made of Atoms, a very long time ago
Hope I was helpful
Explanation:
Answer:
here's the pdf for it
IB QuestionbankExplanation:
