Answer:
a)
b)
Explanation:
a)
Using the conservation of energy between the moment when the bullet hit the block and the maximum compression of the spring.
Where:
- M is the bullet-block mass (0.00535 kg + 2.174 kg = 2.17935 kg)
- V is the speed of the system
- k is the spring constant (6.17*10² N/m)
- Δx is the compression of the spring (0.0634 m)
Then, let's find the initial speed of the bullet-block system.
b)
Using the conservation of momentum we can find the velocity of the bullet.
I hope it helps you!
Answer:
The composition of a sodium ion is 11 protons 10 electrons an 12 neutrons
Explanation:
Sodium has one electron in its outermost shell. In addition to that, sodium ion is formed by the electrovalent combination of sodium atom with another element. During this, the sodium atom loses an electron to become a positively charged sodium ion.
This loss of an electron changes the number of electrons in the atom from 11 to 10. The proton number and mass number still remains 11 and 12 respectively since the combination only affects the electrons of the element.
This imbalance between the proton number and electron number in the sodium ion is what makes it positively charged ()
Constituent summary of ()
Proton number: 11
Neutron number: 12
Electron number: 10
Answer:
Ernest Rutherford observed that particles with a positive charge deflected when passing through a thin sheet of gold foil, concluding that the atom's positive part is small and dense.
Explanation:
The Ernest Rutherford experiment describes planetary model of an atom. According to the model, an atom has a tiny, compact, positively charged centre called a nucleus, where almost all of the mass is concentrated, while light, negatively charged particles called electrons orbit far around it, much like planets orbit the Sun. In his experiment, the observation that a positive charge is deflected through a thin sheet of gold foil led to the conclusion that the deflection some of the positive charge occurs in a small region of the atom. At the same time, the majority passed through the atom (which was also concluded to be empty space).
To understand more about planetary model of an atom. click, brainly.com/question/6546005