What forms when two of earths plates pull apart
2 answers:
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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.
Answer:
Explanation:
The time the stone takes to fall can be calculated considering only the vertical component with the formula:
Taking the inital height as 0m and downward direction positive, since it departs from (vertical) rest we have:
Which gives us a time:
Horizontally, on that time the stone travelled a distance x=10m, which means its horizontal speed was:
Since <u>this speed is the tangential velocity</u> while whirling, the centripetal acceleration of the stone was: