Adynamite blast at a quarry launches a rock straight upward, and 2.3 s later it is rising at a rate of 13 m/s. assuming air resistance has no effect on the rock, calculate its speed (a) at launch and (b) 6.0 s after launch.

World war i brought increased immigration to the united states from which country? germany france italy mexico

The information box says that the han added 4,000 miles of wall.refer to the mileage scale.how can this be true?

Instead of being thirteen republics, under a federal head, [the federalists’ plan] is clearly designed to make us one [unified] government. . whether such a change can ever be [made] in any manner; whether it can be [made] without convulsions and civil wars; whether such a change will not totally destroy the liberties of this country—time only can determine. –the federal farmer what best summarizes the point of view the excerpt expresses? in time, one unified government will run the country. the federalists prefer thirteen republics to one unified government. one unified government probably will not lead to disruptions and civil wars. under one unified government, people will be robbed of their freedoms.