A block is connected to a spring. The spring constant k=75 N/m. The spring is displaced from the starting position of 0.250 m to 0.150 m. What is the spring force exerted on the block?

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)

quintessence, core, heart, crux, nucleus, substance, principle, fundamental quality, sum the origin of a word and the historical development of its meaning. insight, understanding, awareness, wisdom, education, learning, knowledge,

besides the fact that he was asked to make a "few appropriate remarks," why do you think that president lincoln limited himself to so few words? to what extent do you think this has an effa road map has a scale of 10 miles per inch. the length of the straight-line road on the map between two cities is 6 inches. if the road between the cities has a speed limit of 30 mph, about how long should it take to drive from one city to the next?