The relationship of radiation with distance obeys the inverse square law. Therefore, doubling the distance decrease the radiation by a factor of 4. The new count is 250.
1) Applying the same principle, the count decreases by a factor of 100. The new count is 10
2) An alpha particle is 4He2 and the Hydrogen can be represented as 1H1
14N7 + 4He2 - 1H1
= 17X8
Proton number 8 belongs to Oxygen. Therefore, the resultant nucleus is:
17O8
3) 185Au79 - 4He2
= 181Ir77
4) X - 4He2 = 234Th90
X = 238U92
5) Beta emission results in the same nucleon number but an increase in the proton number; therefore, the result is:
234Pa91
Answer:
mental model
A mental model is an explanation of someone's thought process about how something works in the real world. It is a representation of the surrounding world, the relationships between its various parts and a person's intuitive perception about his or her own acts and their consequences.
Explanation:
It would be about -2335.46
The whole answer was -2335.461304
Answer: If you were in a car and maintained an average speed of 60mph (96 kmh) over the course of your it would take you around 3.72 hours to get from Dallas to Shreveport.
Explanation: i just had to calculate the time and the distance and how long it would take with different speeds and this is the closest one i got.
To find an element on the Periodic Table given its numerical information, look at the number of protons/electrons--this is the atomic number. Find the atomic number on the periodic table, and you will find your element.
In this case, we are looking for atomic number 38, which happens to be Strontium