Answer:
Acid rain results when sulfur dioxide (SO2) and nitrogen oxides (NOX) are emitted into the atmosphere and transported by wind and air currents. The SO2 and NOX react with water, oxygen, and other chemicals to form sulfuric and nitric acids. These then mix with water and other materials before falling to the ground.
Explanation:
Answer:
makes a transition from a high to a lower energy state
Explanation:
The emission spectrum is the spectrum of electromagnetic radiation emitted due to the transition from a state of high energy to a state of lower energy made by an electron in the atoms of the chemical element or compound. The emitted photons have an energy equal to the difference in energy between the two states.
Answer:
Venus
Explanation:
The terrestrial planets are the planets in the solar system which are closer to the Sun, compared to the Gaseous giants like Jupiter.
Venus is the planet that is near the Sun and is formed where the solar system's temperatures are very high.
Mercury is the planet which has a very thin atmosphere and so is very cold. Venus is a planet similar to Earth, but it has a dense atmosphere . So venus is hottest compared to other planets.
Answer:
4.5 km / 450 m
Explanation:
1 hour = 9 km
or, 60 min = 9km
or, 60/2 min = 9/2 km
■ 30 min = 4.5 km
heart plzz and brainliest answer as well
Answer:
Magnitude of the force is 2601.9 N
Explanation:
m = 450 kg
coefficient of static friction μs = 0.73
coefficient of kinetic friction is μk = 0.59
The force required to start crate moving is
.
but once crate starts moving the force of friction is reduced
.
Hence to keep crate moving at constant velocity we have to reduce the force pushing crate ie
.
Then the above pushing force will equal the frictional force due to kinetic friction and constant velocity is possible as forces are balanced.
Magnitude of the force
