1. from an origin you walk 3 meters East, 7 meters West, and then 6 meters East. Where are you now related to the origin
1 answer:
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Answer:
1) The girl's acceleration at time 't' is, m/s²
2) The girl's acceleration at time 't₁' is, m/s²
3) The girl's acceleration at time 't₂' is, m/s²
Explanation:
Given data,
The initial walking speed of the girl, u = 0
The speed of the girl at the time 't' 3 s is, v₁ = 1.4 m/s
The time period the girl walked at the speed 1.4 m/s is, t₁ = 6 s
The girl slows down and comes to a stop during a period, t₂ = 10 s
1) The girl's acceleration at time 't'
m/s²
2) The girl's acceleration at time 't₁'
m/s²
3) The girl's acceleration at time 't₂'
m/s²
Answer: C. Africa
Explanation:
The data given on the graph shows that:
Asia will grow from around 1,300 million to 5,000 million in 2050 which is an increase of:
= 5,000 /1,300 = 3.84 times
Europe will decrease over that period.
Africa will go from around 300 million to 2,000 million which is an increase of:
= 2,000 / 300
= 6.67 times
Mexico
, Central America, Caribbean Islands:
= 900 / 120
= 7.5 times
United States, Canada, and Greenland:
= 400/120
= 3.33
Oceania:
= 50 / 13
= 3.85
From the options give, Africa will see the greatest increase at 6.67 times its population in 1950.
