One of the causes of international tension has been when nations began to look beyond their borders for areas that could them to grow, expand, and meet their goals. nationalism imperialism isolationism communism

pretty sure a is right

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