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noname [10]
3 years ago
11

If the distance between two objects is increased to four times the original distance, how will that increase change the force of

attraction between the objects?
Biology
1 answer:
bija089 [108]3 years ago
3 0
Gravitational force becomes sixteen times lesser. The strength of the gravitational force between two objects is dependent on their mass. Gravitational force will be weaker if the objects move further away from each other.
This was used to solve for the gravitational force,
G = gravitational constant 
m = mass of the first object 
M = mass of the second object 
<span>d = distance between the two objects 
</span>
[G * (m*M) / 16d^2] = 1/16
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Darwin hypothesized that new species could appear gradually through small changes in an ancestral species.what experiment did he
Elanso [62]
Answer;
He conducted an experiment with breeding pigeons. 

Explanation;
The pigeons provided the perfect animal to test his theory of selection for quite a number of reasons including its trait diversity from wing structures to color patterns to size to flight patterns. From these experiments he concluded that by natural selection of randomly occurring traits that make species better suited for survival and reproduction, evolve in the astounding diversity of organisms on Earth today. 
6 0
3 years ago
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How does oxygen and nutrients reach the deeper zones?
Aneli [31]
The amount of OXYGEN dissolved in ocean waters quickly decreases with depth
to reach a minimum at around 1000 m of depth.
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at depth (beyond the photic zone, around 100 m)
oxygen can not be produced (lack of sunlight) and whatever amount is present is rapidly consumed:
as a consequence, oxygen is quickly depleted below 100 m
in the Bathypelagic and the Abyssopelagic zones there are less and less consumers, so oxygen is not used up at the same rate it is in surface waters.
In shallow waters there is plenty of sunlight, and as a consequence
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As soon as we move below the photic zone, where animal life decreases significantly,
nutrients start to increase again, reaching a maximum by the base of the Mesopelagic zone,
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Past that point, nutrients decrease very slowly because only few organisms live there.
At these depths, organisms are not very abundant because of the harsh conditions for life we encounter here:
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surface-water circulation
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These gyres rotate clockwise in the northern hemisphere and counter-clockwise in the southern hemisphere (Coriolis effect).
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Deep-water circulation instead is density-driven
This means that differences in water density cause motion of water masses at depth.
Density (mass over volume) changes with changing salinity and temperature of the ocean:
higher salinity implies higher density (and viceversa)
while higher temperatures imply lower density.
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as long as surface waters are warm, they can never sink to the bottom of the ocean.
Surface waters can only sink to the bottom when their density is the same or higher than that of deep waters.
This happens for instance in the North Atlantic ocean, where the formation of ice pack
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7 0
3 years ago
Can someone pl help me? :(
xz_007 [3.2K]

Answer:  

C  

Explanation:  

D in my opinion wouldn't be correct because a vaccine is for if you come in contact with the sickness you are more protected and helps build immunity. So healthy people get them to try and build immunity against said vaccine. Like if you have the flu, your body is fighting. In the Flu vaccine parts of the flu are in the vaccine to help your body learn to become immune. So option C.

Sorry if this is confusing, hope it helps!

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2 years ago
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Yes, it is b. Digestion is the process of breaking down food.
3 0
3 years ago
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