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
dolphi86 [110]
2 years ago
13

What is the definition of the half-life of a radioactive isotope?

Physics
1 answer:
kolbaska11 [484]2 years ago
8 0

Answer: The half-life is the amount of time it takes for a given isotope to lose half of its radioactivity. If a radioisotope has a half-life of 14 days, half of its atoms will have decayed within 14 days. In 14 more days, half of that remaining half will decay, and so on.

You might be interested in
What is the surface area to volume ratio of this cube
tamaranim1 [39]

I can't see that cube from here.

But if the length of the side of the cube is ' K ' units,
then the surface area of the cube is  6K² units², and
the volume of the cube is  K³ units³.

The ratio of the surface area to the volume is

               (6K² units²) / (K³ units³)  =  (6) / (K units) .

So for example, if the side of the cube is 2 inches, then
the ratio of surface area to volume is  "3 per inch".

That's the answer.  I did the whole thing in order to earn
the points, but I don't expect you to understand much of it,
because I see from your username that you suck at math.
I'm sorry you decided that.  Now that you've put up the
brick wall, it'll be even harder for any math to find its way
in there, and you'll miss out on a lot of the fun.

3 0
3 years ago
How does a change in resistance affect the conductivity of a material?
max2010maxim [7]

Answer: the answer is B the lower the resistance,the higher the conductivity

Explanation:

Resistance is inversely proportional to conductivity,the lower the resistance the higher the conductivity,the metal silver has a very low resistance,thus it conductivity is high

4 0
3 years ago
Read 2 more answers
Since the Wagon is being pulled down hill is it increasing (C)
Ket [755]
<em>Since the wagon is being pulled down hill with a constant velocity, all the forces of the wagon would be (C) increasing.</em>
<em>You are correct! **</em>
4 0
3 years ago
what is the result of mixing 15 garm of water 80 degree celsius with 10 gram of ice -10 degree Celsius ? give specific heat capc
strojnjashka [21]

Answer:

50

Explanation:

5 0
2 years ago
a string with fixed ends is made to go into standing wave patterns. at a given tension, the lowest frequency for which a certain
lakkis [162]

Answer:

700 hz

Explanation:

3 0
2 years ago
Other questions:
  • A. What are the three longest wavelengths for standing waves on a 240-cm-long string that is fixed at both ends?
    10·1 answer
  • What is the kinetic energy of a 8kg cat running 5m/s?
    5·1 answer
  • How does the earth move within the solar system?
    14·1 answer
  • During lightning strikes from a cloud to the ground, currents as ... currents as high as 2.50×10^4 amps can occur and last for a
    14·1 answer
  • The element chlorine is found in nature as a molecule that can be represented as - A. Cl.
    14·1 answer
  • An electron is accelrated by a unifor electric field (1000v/m) pointing vertically upward. Use energy methods to get the magnitu
    7·1 answer
  • What magnitude charge creates a 1.0 n/c electric field at a point 1.0 m away?
    6·1 answer
  • A ball is thrown straight up into the air with an initial speed of 8.0 m/s. How long does it take for the rocket to reach its hi
    11·2 answers
  • Calculate the work efecttuated, when the force is 300 N, and the distance is 300 meters.
    7·2 answers
  • In a heat engine, if 500 J of heat enters the system, and the piston does 300 J of work.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!