Answer & Explanation:
'Identical twins separated at birth & raised apart' make an interesting subject for research :
- Gives insights into personality variation among twins, despite of having the same DNA
- Idea about 'Nature vs Nurture', to study how birth & environmental factors shape the cognitive & behavioural aspects of twins
- Analysis of heritability of traits, & factors affecting individual differences in ageing
Probable abuses due to inappropriate evaluation & conclusion of study :
- Intentional & wilful exposure to different environment for both the twins
- Psychological distress to a child if the child is raised in a separate, different environment.
Answer:

Explanation:
Given


Required
Determine the acceleration
This will be calculated using force formula:

Substitute values for Force and Mass

Divide both sides by 62kg


<em>Hence, the wave boarder accelerates at </em>
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Import
The us brings in goods from an outside source
Potlatch, ceremonial distribution of property and gifts to affirm or reaffirm social status, as uniquely institutionalized by the American Indians of the Northwest Pacific coast. The potlatch reached its most elaborate development among the southern Kwakiutl from 1849 to 1925. Although each group had its characteristic version, the potlatch had certain general features. Ceremonial formalities were observed in inviting guests, in speechmaking, and in the distribution of goods by the donor according to the social rank of the recipients. The size of the gatherings reflected the rank of the donor. Great feasts and generous hospitality accompanied the potlatch, and the efforts of the kin group of the host were exerted to maximize the generosity. The proceedings gave wide publicity to the social status of donor and recipients because there were many witnesses.