Answer:
The diameter of the tire is 1.274 m
Explanation:
Given;
total length of the street, L = 172 m
let the radius of the tire = r
let the diameter of the tire, d = 2r
In every single turn, a tire covers a distance, D = 2πr
for the total 43 times, the distance covered, D = L = 43 x 2πr
L = 43 x 2πr
172 = 86πr
d = 2r = 2 x 0.637
d = 1.274 m
Therefore, the diameter of the tire is 1.274 m
The similarity is that in every weather there is a season.
Answer:
The correct options are: a. the number of additional neutrons of an isotope is too large; d. the number of additional neutrons of an isotope is too small
Explanation:
The chemical elements that have the same number of protons in the nucleus but different number of neutrons are known as isotopes. Isotopes can be stable or unstable.
The isotope having an unstable nucleus, due to the presence of additional neutrons in the nucleus of the atom, is known as a radioisotope.
Also, chemical elements that have atomic number greater than 83 have unstable nuclei and thus they are called radioisotopes.
