subject

Geography, 16.10.2019 01:00 adeliabujang8881

Ameteorite was found to contain 40 argon-40 atoms for every 10 potassium-40 atoms. the half-life of postassium-40 is 1.25 billion years. assuming no loss of daughter isotopes, how old is the moon rock?

2.5 billion years old

3.75 billion years old

6.75 billion years old

10.5 billion years old

ansver

Answers: 3

Show answers

Another question on Geography

question

Geography, 23.06.2019 01:00

Solve for r in the formula v = ir, when i = 5 and v = 15.

Answers: 2

question

Geography, 23.06.2019 17:00

Which of the following types of tourist are best to bring money to the local southeast asian communities

Answers: 1

question

Geography, 24.06.2019 04:00

If you were a casual recreational hiker with young children, which of the following trails would be least strenuous for a leisurely family outing? a. merced lake trail b. mirror lake loop trail. c. tenaya lake and tuolumne meadows trail d. el capitan trail

Answers: 1

question

Geography, 24.06.2019 10:30

Choose the correct chronological or of the time periods

Answers: 3

You know the right answer?

Ameteorite was found to contain 40 argon-40 atoms for every 10 potassium-40 atoms. the half-life of...

Questions

question

English, 06.03.2020 00:35

Respond to these prompts. Cite evidence to support your positions. Then, respond to two of your peers’ posts. Discuss how peers’ posts contributed to...

question

Computers and Technology, 06.03.2020 00:35

As you know, des is insecure because of its short key length (56 bits). an improvement, proposed by rivest, is desx. desx has key length 120 bits, see...

question

Computers and Technology, 06.03.2020 00:35

G ddition is a practical method to define for Fraction objects. Consider first the addition of an integer to a fraction, such as {\textstyle \frac{1}{...

question

Mathematics, 06.03.2020 00:36

Lin got a $50 gift card to an on line music store. She uses the gift card to buy an album for $9.99. She also wants to use the gift card to buy some s...

question

Physics, 06.03.2020 00:36

Compute the moment of inertia of the mallet about the O-O axis the mass of the head is 0.8 kg, and the mass of the handle is 0.5kg. (Ans. 0.0671 kg m2...

question

Business, 06.03.2020 00:36

A city imposes a mandatory "guild fee" on sales of handcrafted goods. this tax causes the supply curve for handmade mailboxes to shift from s1 to s2....

question

Mathematics, 06.03.2020 00:36

The blades of a helicopter meet at right angles and are the same length. the dostance between the tips of two consecutive blades is 36 feet. how long...

question

Business, 06.03.2020 00:36

Many observers believe that the levels of pollution in our society are too high. a. If society wishes to reduce overall pollution by a certain amount,...

question

Business, 06.03.2020 00:36

Revenue at a major smartphone manufacturer was $2.2 billion for the nine months ending March 2, up 87 percent over revenues for the same period last y...

question

Mathematics, 06.03.2020 00:36

Which operations would create an equivalent system of equations with opposite like terms? 3 x minus 3 y = 3. 4 x + 5 y = 13. The fir...

question

Physics, 06.03.2020 00:36

At a particular instant, a proton at the origin has velocity < 4e4, -2e4, 0> m/s. you need to calculate the magnetic field at location < 0.03...

question

Computers and Technology, 06.03.2020 00:36

Create a program that uses a structure named MovieData to store the following information about a movie: Title Genre Director Year Released Running ti...

question

Physics, 06.03.2020 00:36

A velocity selector in a mass spectrometer uses an electric field of 4.4 x 105 V/m. What magnetic field strength (in Tesla) is needed to select a spee...

question

Physics, 06.03.2020 00:36

A commercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at −30°C by rejecting its waste heat to co...

question

Business, 06.03.2020 00:37

Early in 2022, Rivers Company switched to a JIT (just-in-time) inventory system. Financial information for the two most recent years are listed here:...

question

Physics, 06.03.2020 00:37

A collision between two identical pucks, one moving and the other stationary, takes place on ice. The puck with an initial momentum of 4.0 kg. m/s is...

question

Mathematics, 06.03.2020 00:37

Extra Credit: Find the values of x, y, and z. Show all work! x+105° (2x - 13)...

question

Social Studies, 06.03.2020 00:37

theory focuses on the needs that drive intrinsic motivation, which is longer lasting and has a more positive impact on task performance than extrinsic...

question

Business, 06.03.2020 00:37

Annie enjoys restoring old homes. She treasures the beauty and attention to detail that she finds in old buildings. To help her, she hires artisans sh...

question

Business, 06.03.2020 00:38

Under what listing clause may the broker claim a commission if the owner sells to a person the broker introduced to the property within a certain time...

More questions: Geography Another questions

Questions on the website: 13722360