a the atom loses 1 proton to have a total of 34
Answer:
I can't see it because it's too blury. try to search it
Answer:
B and C
Explanation:
I got it right on my a pex test
Answer:
20,000 Ns
Explanation:
mass of exhaust gases, m = 50 kg
velocity of exhaust gases, v = 400 m/s
The momentum of a body is defined as the measurement of motion of body. mathematically, it is defined as the product of mass off the body an its velocity.
change in momentum of rocket = final momentum - initial momentum
= m x v - 0
= 50 x 400
= 20,000 Ns
