Why does putting baking soda on a fire put it out?
1 answer:
You might be interested in
<h2>Answer: The half-life of beryllium-15 is 400 times greater than the half-life of beryllium-13.</h2>
Explanation:
The half-life of a radioactive isotope refers to its decay period, which is the average lifetime of an atom before it disintegrates.
In this case, we are given the half life of two elements:
beryllium-13:
beryllium-15:
As we can see, the half-life of beryllium-15 is greater than the half-life of beryllium-13, but how great?
We can find it out by the following expression:
Where is the amount we want to find:
Finally:
Therefore:
The half-life of beryllium-15 is <u>400 times greater than</u> the half-life of beryllium-13.
Answer with Explanation:
We are given that
Speed ,=107257 kmph
Angular velocity,
Radius of earth,r=
1 km=1000 m
Linear velocity,
Linear velocity,
Velocity at point A,
Velocity at point B,
Velocity at point C,
Velocity at point D,