A method for improving your memory…
The best predictor of the radioactive nature of an isotope is the neutron-to-proton ratio of the atom. Isotopes are atoms of elements having the same number of protons however they don't have the same number of neutrons. Each isotope of an element will have different values of mass number.
Shelli will most likely say that the sound produced by the resonance of a metal is affected by the frequency at which the metal is vibrated. There is a certain frequency that will create a dim sound. If the frequency is changed to the right setting, the sound will intensify.
Answer:
The force bumper at 0.200m
F=2722.5 N
Explanation:
Using the energy theorem of work

W=ΔK
W=F*d
ΔK=

ΔK=F*d=
