2. In each of A, B, C, & D below, a sphere is moving from left to right next 20 points to a tape marked in meters. A strobe (flash) photograph is taken every
second and the location of the sphere is marked. Rank the magnitude of
the average velocity over the first two seconds. Remember the time
interval between each two dots is always one second.
А
O
o
4
3
O
6
0
5
O
8
1
O
10 m
2
9
o 을
o
B
O
OOO
0
1
3
O
4
5
o
8
6
7
9
10 m
C
2
O
6
0
3
5
o
9
7
10 m
O
10 m
9
D
o
0
2
5
6 7
Rank the magnitude of the average velocity over the first 2 seconds.
OR
2
3
4
All
Greatest
Least the same
ALI
zero
Canno
determine
O A >> C>D
OD > C >>A
OD > C> A>
O All the same

zero

rank the magnitude of the average velocity over the first 2 second

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.  

bacteria that live on the ocean floor are sustained by phytoplankton. phytoplankton, microscopic marine photosynthetic organisms, have a vastly significant role to play not only in the marine food web of which they’re part of, but also on a more global scale. despite their infinitely small size in comparison to other marine organisms, these tiny creatures occupy an immensely important ecological niche: they are the foundation of the marine food web, and as primary producers, play key roles in supporting all other organisms in the marine environment, as well as in the regulation of the earth’s climate through the sequestration of carbon, oxygen production, and other related processes. phytoplankton account for roughly half of all global primary productivity; therefore, their significance extends far beyond the marine environment alone. there is an intriguing sense of irony in the realization that these tiny living beings that often live out their existence unnoticed and undetected by the rest of the world, have such a far-reaching impact on the lives of virtually all other living organisms on the planet, particularly on those in the marine environment. the world that we have become accustomed to has been and is continuously shaped by the workings of these miniscule yet vital “plants of the sea”.

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