Answer:
B) oligarchy
Explanation:
ol·i·gar·chy
/ˈäləˌɡärkē/
noun
a small group of people having control of a country, organization, or institution.
a country governed by an oligarchy.
"the English aristocratic oligarchy of the 19th century"
government by an oligarchy.
They may personalize events as being somehow directed at them, and they may generalize their experiences by blowing single incidents out of proportion
Answer:
Spring constant, K = 415.9 N/m
Explanation:
The period of vibration of a spring, T, is given by:
T = 2√m/K
Where m = mass of the body in kg, K = spring constant or force constant or elastic constant or stiffness in Nm-1
Making K the subject of the expression,
K = m(2)2/(T)2
K = 4m()2/(T)2
Where m = 0.38kg, = 3.14285714286, T = 0.19s
K = 4 x 0.38 (3.14285714286)2 / (0.19)2
K = 4 x 0.38 x 9.87755102043 / 0.0361
K = 15.0138775511 / 0.0361
K = 415.9 Nm-1
A.The Roman empire relied on physical features as natural barriers.
