Answer:
D. It is relatively inert.
Explanation:
The mass number of an isotope is the sum of the numbers of protons and the numbers of the neutron. Given that the mass number is 65 and the number of neutrons is 35, the number of protons is 30. The atom is then Zinc (Zn). The charge is equal to +2, as it lacks 2 more electrons.
Explanation:
The peak emf in an AC generator is given by :
Here,
N is number of turns in the generator
A is area of the coils
B is magnetic field
is angular frequency
It is clear that the peak emf in an ac generator depends on :
- The number of turns in the generator
- Area of coils
- Magnetic field
IF the bag is suspended freely in mid-air and free to move
without friction, then the linear momentum is the same both
before and after the hit.
Momentum of the bullet before the hit = ( m₁ v₁ ).
Momentum of the (bullet + bag) after the hit = (m₁ + m₂) (v₂) .
Momentum is conserved, so we can say that ...
( m₁ v₁ ) = (m₁ + m₂) (v₂)
v₂ = ( m₁ v₁ ) / (m₁ + m₂)
Usually the mass of the bag is much much more than the mass
of the bullet, so the mass of the bullet can be ignored after the
hit, and the formula is very closely ...
v₂ = v₁ ( m₁ / m₂ ) .
Stop apologizing for your English. It's better than many native
Americans writing on this site. Be proud.
