Some observers at a lynching do not participate but do not attempt to stop the lynching. which of the following theories of crowd behavior best explains this? a. contagion theory b. emergent norm theory c. crowd decision theory d. convergence theory

An object weighs 40n in air , weighs 20n when submerged jn water and 30n submerged in a liquid of unknown density .what is the density of the liquid?

In the years after world war ii, which of the following caused many people from asian and african countries to migrate to europe? a. the end of the soviet union b. new economic opportunities after colonialism ended c. the religious freedom found in europe d. new laws allowing greater numbers of immigrants into european countries

All living things share certain characteristics. which of the following characteristics is not shared by all living things?