There’s no image but if there is something about an ice skater turning the rink then that is the answer
Answer:
1) USING GAS IN THE HOME
2) USE IN THE INDUSTRIAL SECTOR
3) TRANSPORTATION
Explanation:
Aside from electricity, the residential sector of society uses natural gas to heat up buildings, water, cook meals, and dry clothing. Pretty much anything that needs to be done in the home or commercial building that involves heat, is able to get done thanks to the production of natural gas.
Antifreeze
, Plastics, Pharmaceuticals, Fabrics, Ammonia, Methanol
, Ethane, Propane
According to studies, vehicles that utilized natural gasses emitted 60-90 percent less smog-producing pollutants and 30-40 percent less in greenhouse gas emissions. Also, with its production and distribution within the United States, the cost for its use in transportation vehicles is substantially less than the gas that is imported from other nations.
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.
A radioactive element with a half-life of 1,000 years, and starting mass of 20 grams, will need 2,000 years to decrease to 5 grams.
Explanation:
The radioactive elements all have a specific half-life. Each element's half-life is well known, and they are used by scientists of numerous fields as they are excellent for determining the age of a particular item, be it or organic or non-organic nature. In this case, we have a radioactive element with a half-life of 1,000 years, and starting mass of 20 grams.
The half-life basically means that half of the mass of an element is lost during a particular period of time. For the element in question we need to find out how much time will be needed for it to decrease to 5 grams. In order to get to the result, we just need to add 1,000 years on every decrease of half of the mass:
20/2 = 10
10/2 = 5
So in 1,000 years, the element in question will decrease to 10 grams, and in further 1,000 years (2,000 cumulatively) it will decrease to 5 grams.
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