Advanced Placement (AP), 02.01.2020 22:31 tomasholguin
Radioactive decay of 40k in an igneous rock has resulted in a ratio of 25 percent 40k atoms to 75 percent of 40ar and 40ca atoms. how many years old is this rock?
Answers: 3
Advanced Placement (AP), 23.06.2019 17:30
Analyze the map above. using complete sentences, discuss the population distribution of the united states. make sure to address the issue of climate and at least one other factor that has created such an uneven population distribution throughout the region.
Answers: 3
Advanced Placement (AP), 23.06.2019 20:00
Select the statement that is not true about the hubble telescope: a. it orbits above the earth, avoiding the light distortion caused by our atmosphere. b. it is mounted high on a hawaiian mountaintop to provide stable images. c. it has allowed scientists to see the formation of far-away stars and solar systems, leadin some certainty about the history of our own solar system. d. it has documented the destruction of far-away stars and galaxies, leading to some certa the theories of the life cycles of stars.
Answers: 1
Advanced Placement (AP), 24.06.2019 20:00
Suppose you are making a map of stars around the sun, and you draw earth 1 cm from the sun on your map. the brightest star in the night sky is 8.6 light-years from the sun. on your map, how far would you place that star from the sun?
Answers: 1
Advanced Placement (AP), 24.06.2019 22:30
Gneiss is formed. the mineral grains in which granite are flattened under pressure
Answers: 1
Radioactive decay of 40k in an igneous rock has resulted in a ratio of 25 percent 40k atoms to 75 pe...
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