Answer: A
Explanation:
Isotopes of different elements differ by the number of neutrons inside the nucleus.
If I were to go from the United States to China in one second, that's a large distance in an incredibly short time. I'd say that's pretty fast.
If I were to go from my room to the door of my room in a year, then that would be unbearably slow.
Answer:
The object has 1250 Joules of Kinetic Energy.
Explanation:
Kinetic Energy = 
mass*velocity²
KE = mv²
KE = (100kg)(5m/s)²
KE = (100kg)(25m/s²)
KE = 1250
KE = 1250J
Yo sup??
The weight vector is usually drawn vertically downwards from the centre of the body.
It can be respectively resolved as well.
Hope this helps
Answer:
It changes into a completely different element
