Answer:
See solution and explanation below
Explanation:
a) From;
N/No = (1/2)^t/t1/2
1/8 = (1/2)^t/1.25 * 10^9
(1/2)^3 = (1/2)^t/1.25 * 10^9
3 = t/1.25 * 10^9
t = 3 * 1.25 * 10^9
t = 3.75 * 10^9 years
b)
N/No = (1/2)^40,110/5,730
N/No = (1/2)^7
N/No = 1/128
percentage remaining after 40,110 years = 1/128 * 100 = 0.78%
c) N/200 * 10^-9 = (1/2)^4.26 * 10^9/0.710 * 10^9
N/200 * 10^-9 = (1/2)^6
N/200 * 10^-9 = 1/64
64 N = 200 * 10^-9
N= 3.125 * 10^-9 g
d) Radiocarbon dating can not be used to determine the age of the solar system since the solar system is as old as the universe and was formed billions of years ago. Radiocarbon dating can only be accurately used to obtain the age of objects of plant or animal origin between 1000 - 10000 years old.
Answer:City maps, the squares or grids represent one square mile.. On larger maps they can indicate townships, counties, or land parcels.
Explanation:
It is true, they had a huge economic growth, and built Tokyo
Answer:
Option 4
Explanation:
Because the 24 hours day length allow a very high total isolation despite a lower instantaneous insolation
Answer:
The statement is true.
Explanation:
eThe deciduous forests are forests that are found in temperate climates. They are dominated by trees that are well adapted for life in conditions where there are changes of seasons, thus they are able to survive in both high and low temperatures, with inconsistent precipitation, shorter droughts, etc.
Because of the change of seasons where these forests are found, the precipitation is manifested in more than one way. During the warmer part of the year, the precipitation comes in the form of rain. During the colder part of the year, the precipitation comes in the form of snow. Occasionally, the precipitation can come in other forms as well, such as hale or frozen rain.