Identify the words in this sentence as common nouns, proper nouns, or neither.
jeff was in the store.

jeff (common nouns, proper nouns, or neither)
was (common nouns, proper nouns, or neither)
in (common nouns, proper nouns, or neither)
the (common nouns, proper nouns, or neither)
store (common nouns, proper nouns, or neither)

Proper noun, Neither, Neither, Common.

Jeff is a proper noun because a Proper noun is something that begins with a capitol, and is commonly known for a individual person, place, or organization.

was is neither, because it doesn't describe a person, place, or thing, (or organization), and doesn't start with a capitol (for Proper)

same with in

store is a common noun because, it is in fact a place.

the speech this question is referring to is president kennedy's special message to the congress on urgent national needs, may 25, 1961

kennedy responds in a very direct and concrete way to those thinking that communism is a positive system:

"yet their aggression is more often concealed than open. they have fired no missiles; and their troops are seldom seen. they send arms, agitators, aid, technicians and propaganda to every troubled area. but where fighting is required, it is usually done by others--by guerrillas striking at night, by assassins striking alone--assassins who have taken the lives of four thousand civil officers in the last twelve months in vietnam alone--by subversives and saboteurs and insurrectionists, who in some cases control whole areas inside of independent nations." (kennedy)

president kennedy presents communism as cowardly, as a hidden and treacherous weapon that strikes from the shadows like thieves, he represents the system as not even being capable of showing and open and overt attack or confrontation. to finish up the response, he expresses that the system attacks even a country's idependence and freedom.

the boy's acceleration toward the girl is 2.08 m/s^2.

explanation:

according the newton's third law, the force causing the girl accelerate towards the boy will be me with equal counter-force causing the boy to accelerate towards the girl. these forces will be of equal magnitude and allows us to determine the boy's acceleration:

the boy's acceleration toward the girl is 2.08 m/s^2.