Someone answer this please 6 and 7

6. Internal rebellions of the 12th century caused the Seljuk Empire to begin to fracture from within. By the mid-1200s, only a small sultanate remained in Anatolia (Turkey).

7. Osman sought to expand his territory (inherited from his father), and called for holy war against the weakening Byzantine Empire (which was right on the edge of his territory, making it a natural expansion of his own territory).

Explanation:

Hope this helped!

a. formula: f=ma or f/m=a

10,000n/1,267kg≈7.9m/

b. formula: a= and s=d/t

speed= 394.6/15

s=26.3m/s

a=

a=1.75m/

c. 7.9-1.75=difference of 6.15m/

d. the force that most likely caused this difference is friction forces