Answer And Explanation:
Primary sources of online data could be blog posts, twitter posts, and vlogs because the person producing forms of work is giving first-person account of his experience.
Secondary sources online data could be articles, news, and documentaries because people have gathered several primary sources to build their case that they are making.
Hope this is clear, and good luck with studies :)
-- 30N
-- the sum of all the forces
Answer:
when work is done on the system or heat comes into the system
<span>4) Formation of a gas
When methane burns, it produces the gases water vapor and carbon dioxide.
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According to Newton (2nd law), Force = (mass) x (acceleration)
Substitute what we know : Force = (1,000 kg) x (3 m/s²)
Do the arithmetic: Force = 3,000 kg-m/s² = 3,000 newtons
