Explanation:
<h3>The process in which green plants prepare their food in their body by using carbon dioxide and water in the presence of sunlight is called photosynthesis.</h3>
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organisms and water
Explanation:
Organisms and water contribute to both chemical and mechanical weathering . A form of weathering known as biological weathering is a derivative of both chemical and physical weathering.
- Weathering is the physical disintegration and chemical decomposition of rocks to form sediments and soils.
- Organisms are pivotal to both physical disintegration of rocks through their activities.
- Through their metabolic activities, they also releases chemicals that are used for chemical weathering of rocks.
Water is essential for weathering. It is used in alternate freezing and thawing, a mechanical weathering process to break down rocks.
It is used in rock hydrolysis for chemical weathering.
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Answer:
average speed = total distance/total time
Answer:
twice the original speed
Explanation:
the centripetal force is the force of an object moving in a circle of turning and it is given by the expression
where f = force of the object
m = mass
v = velocity
r = radius of the circle
first we need to know what the orignal speed will be then we can tell what will happen if the radius of the circle is changed to 4R.
from the expression for the centripetal force, we need to make the velocity subject of the formula
now, if the radius is changed to 4R
in the expression for v above i will need to just insert 4R in place of r
the square root of 4 is 2,
therefore
we can see that this is just twice of what the original speed was.
With smaller gravitational forces and therefor less vertical acceleration, the projectile launched on the moon ... with the same initial speed and direction ...
-- climbs faster,
-- spends more time climbing,
-- reaches a higher peak,
-- falls slower,
-- spends more time falling, and
-- covers more horizontal distance
than the projectile launched on the Earth.
This is not because of air resistance. It would be true even if there were no air resistance on the Earth. It's entirely a gravity thing.
