1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
balandron [24]
3 years ago
9

A piece of granite is determined to contain 50 grams of U-238. After on half-life, how much material

Biology
2 answers:
zvonat [6]3 years ago
5 0

Answer: Hydrogen-3 or tritium as it is commonly called, has a half life of 12.32 years. If you start with 20 grams of it, how much will remain after 25 years? Ending Amount = Beginning Amount / 2 (time / half-life) Ending Amount = 20 / 2 (25 / 12.32) Ending Amount = 20 / 2 (2.0292) Ending Amount = 20 / 4.0818. Ending Amount = 4.8997 grams

Explanation:

MrMuchimi3 years ago
5 0

Answer:

<h2 />

Explanation:the ont

You might be interested in
What do you notice about the temperature at each of the layers boundaries
ankoles [38]

Answer: The mesosphere starts at 31 miles (50 km) and extends to 53 miles (85 km) high. The top of the mesosphere, called the mesopause, is the coldest part of Earth's atmosphere, with temperatures averaging about minus 130 degrees F (minus 90 C). This layer is hard to study

Explanation: hope this helps please give brainliest!

4 0
3 years ago
Select the correct answer.<br> Which image best represents kinetic energy?
Pavel [41]

Answer:

C.

Explanation:

In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.

6 0
3 years ago
Read 2 more answers
A paleobotanist studies tree rings to determine the history of an area. True False
makvit [3.9K]
It is true because scientists often do that

5 0
3 years ago
Read 2 more answers
How do naturalist explain order,design and function in the biosphere
erik [133]

Naturalists represent the idea that only natural laws (physical laws) are the rules that govern the structure and behavior of the natural universe. This means that everything can be explained in terms of natural causes. Naturalism is the belief that all that exists material matter, that there is no such thing as soul and that individuals have no purpose in life.

7 0
3 years ago
Read 2 more answers
The students in Mrs. Cosby's class were observing worms. The students wanted to find out if a worm's body weight is related to h
REY [17]
After the worms have finished eating their food, the students must now weigh the worms and record this data. They can then compare these new weights to the starting weights of the worms and see if it demonstrates their hypothesis. Hope this helped :)
7 0
3 years ago
Read 2 more answers
Other questions:
  • PLSSSSS HELP :(
    14·1 answer
  • Wind can erode rocks, especially in desert areas. Select all the "spheres" that are interacting in this situation.
    10·2 answers
  • Five examples of cells in plants and animals​
    6·2 answers
  • Which taxon includes organisms that have hair or fur and produce milk?
    12·1 answer
  • What is the best example of how the nervous system maintains
    13·1 answer
  • If you answer right I will give you the brainiest!!!!!
    15·1 answer
  • If 10 glucose molecules enter the Krebs Cycle, how many possible molecules of ATP can be produced?
    12·1 answer
  • In a single called organism mitosis is used for
    8·1 answer
  • This cockroach is an insect, and the dog is a mammal. Insects and mammals both have structures that support their bodies. What i
    9·1 answer
  • Anyone got the answers to the UNIT: UNDERSTANDING ORGANISMS test?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!