Answer:
Explanation:
Recall that density is defined as and that relative uncertainty is defined as where is the uncertainty in the measure and a the measure, To find the uncertainty when two physical quantities are divided, their relative uncertainties are added and then multiplied with the division result of the quantities.
We have:
To find the percent uncertainty, we multiply the relative uncertainty by 100%.
Answer:
Addition of shells increases the distance of outer electrons from the nucleus.
Explanation:
Shielding effect is known as the attraction between the nucleus and an electron of any atom. In other words, it is the reduction in effective nuclear charge on an electron cloud.
Addition of electron shells results in the shielding of electron from nucleus. As the number of electron shells increases then farther will be the electrons placed from the nucleus and hence it will become easier to expel the electrons from outer shells with only little amount of ionization energy.
So, the amount of ionization energy require will be indirectly proportional to the shielding effect because more the shielding of electrons from the nucleus less will be the ionization energy require to expel the electrons.
Answer:
0.0835 m
Explanation:
The magnetic force exerted on the deuteron is equal to the centripetal force that keeps it in circular motion:
where
is the charge
is the speed of the deuteron
is the magnetic field strength
is the mass of the deuteron
r is the radius of the orbit
re-arranging the equation, we find:
The energy travels in a disturbance, in an ocean that disturbance is a wave, so the wave makes energy and moves it through the water
Answer:
3rd answer
Explanation:
compare the total amount of time for each student