subject

Biology, 08.04.2020 18:54 jlulu398

Compute the age of a basalt rock sample from the Moon containing 6 grams of Uranium-235 (parent isotope) and 42 grams of Lead-207 (daughter isotope). This rock is from a complex crater flooded with lava. The half-life of Uranium-235 is 704 million years.

ansver

Answers: 1

Show answers

Another question on Biology

question

Biology, 21.06.2019 21:00

The probability of producing a normal child by two parents who are carriers for an autosomal recessive disorder is

Answers: 1

question

Biology, 22.06.2019 02:00

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

Answers: 3

question

Biology, 22.06.2019 03:30

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent

Answers: 1

question

Biology, 22.06.2019 04:20

Explain the significance of the increased cell specialization of the volvocine line

Answers: 1

You know the right answer?

Compute the age of a basalt rock sample from the Moon containing 6 grams of Uranium-235 (parent isot...

Questions

question

Mathematics, 16.09.2021 18:20

The greatest amount of rain is times the least amount of rain...

question

Biology, 16.09.2021 18:20

3. Circle the letter that indicates quantitative observations: a. The seed was about 3 inches long. b. Using a beaker the water quantity was 150 ml. c...

question

Mathematics, 16.09.2021 18:20

A ball is thrown from a height of 32 meters with an initial downward velocity of 2/ms. The ball's height h (in meters) after t seconds is given by the...

question

Business, 16.09.2021 18:20

Answer every Question Please 1. What do interior designers use CAD to do? Select one task that an interior designer could use CAD for and comp...

question

Mathematics, 16.09.2021 18:20

Automobile insurance is much more expensive for teenage drivers than for older drivers. To justify this cost difference, insurance companies claim t...

question

English, 16.09.2021 18:20

Planning your future requires thought, passion, and creativity—especially when dealing with the challenges that may come your way. What really drives...

question

English, 16.09.2021 18:20

HEL Which event from Roll of Thunder, Hear My Cry makes the story's conflict seem more serious than before? A. Stacey rips up T. J.'s cheat no...

question

Mathematics, 16.09.2021 18:20

Lisa Frees and Amelia Ellinger have been operating a catering business for several years. In March, the partners plan to expand by opening a retail sa...

question

Chemistry, 16.09.2021 18:20

When 1.3584g of sodium acetate trihydrate was mixed into 100.0cm3 of 0.2000 M HCl (aq) at 25 0Cin a solution calorimeter, its temperature fell by 0.39...

question

Biology, 16.09.2021 18:20

Label each image as containing atoms only, molecules that are not compounds, or compounds....

question

History, 16.09.2021 18:20

Question 16 of 22 Which event resulted directly from the growth of railroads in the 19th century? A. Congress stopped regulating transportatio...

question

Mathematics, 16.09.2021 18:20

Please answer the first question ...

question

Mathematics, 16.09.2021 18:20

What is the solution to the compound inequality in interval notation? 2(x+3) > 12 or 2x + 3 < -7 type missing brackets or parenthe...

question

English, 16.09.2021 18:20

Nile is the longest river in the world (change into negative)...

question

Mathematics, 16.09.2021 18:20

5. Calcium carbonate decomposes at 12000 C to form carbon dioxide and calcium oxide. If 25 liters of carbon dioxide are collected at 12000 C, what wil...

question

History, 16.09.2021 18:20

Which of the following modern-day countries is NOT a part of the ancient region called the "Fertile Crescent"? Turkey Syria Afghan...

question

Mathematics, 16.09.2021 18:20

2(x+a)=4b solve for A...

question

Spanish, 16.09.2021 18:20

Which sentence correctly describes the image? द w OA. A él le duele la espalda. OB. A él le duele la nariz. O C....

question

Social Studies, 16.09.2021 18:20

Name three things that are considered animal waste...

question

History, 16.09.2021 18:20

How important is religion in Russia? Does this affect Tsar Nicholas II?...

More questions: Biology Another questions

Questions on the website: 13722367