Which of these actions would increase heat transfer between two objects?
a:establishing their thermal equilibrium
b:increasing the area of their contact
c:using objects with similar specific heats
d:reducing the time of their contact

When did stockpiles of strategic nuclear weapons begin to dramatically decline in the united states? a. the mid-1960s b. the mid-1970s c. the mid-1980s d. the mid-1990s

Which of the following is not a requirement to become a us representative (congressman/congresswoman)? a.be at least 25 years old b.have been a citizen of the united states for the past seven years c.be (at the time of the election) an inhabitant of the state they represent. d.hold a college degree

Who introduced arabic numerals to italy, which make bookkeeping possible? a. brunelleschi b. cosimo de medici c. fibonacci d. gregory xi e. giovanni de bicci de medici