Answer:
After 2000 years, the first after will be 4m lower.
After 2000 years, the second area will be 14m higher.
Explanation:
From the given information:
At the first area:
if the wind is eroding at 2 mm/year, then after 2000 years; we have:
2 mm/year × 2000 year = 4000 mm
4000 mm to meters, we have:
= 4 m lower
At the second smaller area:
Given that the wind is depositing it at the rate of 7 mm per year;
Then:
7 mm/year × 2000 year = 14000 mm
=14 m higher
200 moles of nitric acid.
Explanation:
We have the following chemical equation:
3 NO₂ + H₂O → 2 HNO₃+ NO
Taking in account the chemical equation, we devise the following reasoning:
if 3 moles of nitric dioxide (NO₂) produce 2 moles of nitric acid (HNO₃)
then 300 moles of nitric dioxide (NO₂) produce X moles of nitric acid (HNO₃)
X = (300 × 2) / 3 = 200 moles of nitric acid.
Learn more about:
number of moles
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Answer:
False
Explanation:
This isn't true. Energy is neither created nor destroyed. Heating something makes the particles move faster, but no new energy is created. Cooling results in slower particles, but once again, no energy loss.
so as we know potential energy is stored energy which is the top of the roller coaster when you increase the pull of gravity you will increase potential energy and kinetic energy is a theory that states that particles of matter are always in motion. and that the amount of motion depends on the amount of energy in the particles so for short kinetic energy is energy in motion which is the roller coaster when its moving. mechanical energy is the same thing energy in motion such as a moving vehicle which is still the roller coaster when its moving. conservation of energy from the roller coaster is not destroyed nor created the energy changes form.
so the potential energy is stored in the top of the roller coaster. kinetic energy is when the roller coaster is in motion same thing for mechanical and conservation is the energy that is being released from the roller coaster is neither destroyed nor created.
i hope this makes sense XD
