A train travels 226 miles from Washington, D.C.,to New York city in about 2 hours and 30 minute. What is the average speed of th
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To understand this question, we need some knowledge on radioactive decay. This type of nuclear decay is called a beta decay
<h3>Beta Decay</h3>This is the process where a radioactive material is fired or naturally emits a beta particle which is equivalent to the lose of an electron and spontaneously becomes an entirely different element.
The participating actors in this nuclear reaction are
- helium
- lithium
- electron
This is the decay process of helium particle in which it became a lithium particle and emitted an electron in the process.
Learn more on beta decay here;
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This is how I did it:
use distribution
use addition
use addition and subtraction
use division
So your answer is
So your answer is