Physics

posted by .

The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneously breaks into two alpha particles (helium nuclei, each consisting of 2 protons and 2 neutrons).
(a) What is the force between the two alpha particles when they are 5.00x10^-15 m apart?

(b) What will be the magnitude of the acceleration of the alpha particles due to this force? Note that the mass of an alpha particle is 4.0026 u.

• Physics -

(a) Use Coulomb's Law. In this case, the Q's are both equal to 2e, where
e = 1.6*10^-19 Coulombs

b) According to Newton's second law,
acceleration = (Force)/(mass)
where the mass is that of an alpha particle, which is very nearly equal to the mass of 4 protons

Similar Questions

1. Science

1. Which statement about subatomic particles is NOT true?
2. physics

An aluminum nucleus has 13 protons and 14 neutrons. A copper nucleus has 29 protons and 34 neutrons. What is the force of repulsion between an aluminum nucleus and a copper nucleus when they are separated by 10-9 m?
3. science

When a parent radioactive nucleus splits by ejecting an alpha particles (two protons and two netutrons), the remaining nucleus has ____ the original nucleus. a) two protons and two neutrons more than b) two protons more and two neutrons …
4. physics

12. If alpha particles are caused to fall through a potential difference of 1500 volts, determine their final speed if they were initially at rest. Alpha particles are Helium nuclei composed of two protons and two neutrons.
5. Physical Science

An aluminum nucleus has 13 protons and 14 neutrons. A copper nucleus has 29 protons and 34 neutrons. What is the force of repulsion between an aluminum nucleus and a copper nucleus when they are separated by 1.2 nm?
6. Chemistry

one of the tin isotopes has 50 protons and 63 neutrons. another isotope of tin might have a)50 protons and 0 neutrons b)50 protons and 62 neutrons c)49 protons and 63 neutrons d)63 protons and 63 neutrons e)63 protons and 50 neutrons
7. physics

The number of electrons that move about the nucleus of an electrically neutral atom is the same as the number of ____________________. A) protons in the nucleus.B) quarks in the nucleus.C) protons + neutrons in the nucleus.D) neutrons …
8. physics

The number of electrons that move about the nucleus of an electrically neutral atom is the same as the number of ____________________. A) protons in the nucleus.B) quarks in the nucleus.C) protons + neutrons in the nucleus.D) neutrons …
9. Chemistry

An atom has 98 protons and 151 neutrons. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daughter nucleus?
10. physics

For small nuclei, an equal number of protons and neutrons gives rise to a stable nucleus. However, for larger nuclei, an excess of neutrons is required. Using your knowledge of the relevant physics, discuss why additional neutrons …

More Similar Questions