The correct answer is the Richter scale
Mercali is used to measure damage created by the earthquake, while the remaining two are not scales of measurement.
Answer:
Advantages
1. In this busy life, television can be the easiest source of entertainment. 2. By watching news channel, we get updated with the things going around the world. 3. Channels, like Discovery, gives information about Wild life. 4. Watching quiz shows can increase our knowledge. 5. By watching recipe channel, we can learn many recipes.
Disadvantages
1. Adult scenes, frequently shown on television, will have bad effect on children's mind. 2. Children's who are addicted to watch television instead of playing outdoor games, are more prone to Obesity. 3. Watching television will have bad effect on our eyesight. 4. Due to television, we don't prefer to socialize with our friends and relatives. 5. If people relate their own story with some character, it can have bad impact on their own life.
Answer:
2.62 years
Explanation:
The half life of a material is the time taken for half of the number of radioactive atoms in a radioactive material to remain.
If a radioactive material is cut into pieces, each piece has the same half life as the whole material.
Hence, if Strontium-147 is cut into pieces, each piece will have a half life of 2.62 years, just as the whole material.
Answer:
107.3g
Explanation:Density = Mass/Volume
There are two methods either by taking the above formula and inserting the values or by using Mass = Denstiy*Volume
Here I have showed you both the ways:
1st
As Desnity is 21.46g/cm^3
Volume = 5cm^3
Let m be mass
21.46g/cm^3=m/5cm^3
Cross multiplication takes place here
21.46*5=m
107.3 =m
Therefore, mass of platinum = 107.3g
2nd
Mass = Denstiy*Volume
Density = 21.46g/cm^3
Volume = 5cm^3
m=21.46g/cm^3* 5g/cm^3
m= 107.3g