What does r-value mean for windows?

What event was one of the greatest factors that led to massive emigration from ireland to the united states in the mid—1800s

Which statement best completes the diagram of the ways the different branches of government can limit each other's powers?

Identify the constitutional principle that is common in both this excerpt and federalist no. 51. based on the constitutional principle identified in part (a), explain how the perspective in this excerpt compares with the perspective in federalist no. 51. explain how the constitutional principle identified in part (a) is reflected in the constitution, including two examples to explain how it affects the u.s. political system