You wish to perform experiments to determine the pressure drop from the entrance to exit of a 0.15 m diameter 90 degree elbow constructed of smooth plastic. The fluid is ethanol (ethyl alcohol) at 20 degrees C, flowing at 5 m/s. a) What is the dependent variable in this problem

Two models of the same compound are shown. in what way is model b better than model a? model b shows the types of elements in the compound, but model a does not. model b shows the three-dimensional shape of the molecule, but model a does not. model b shows how the atoms in the molecule are connected, but model a does not. model b shows the number of atoms of each element in the molecule, but model a does not

Human population projections are subject to change due to fluctuations in global fertility and mortality rates

Give a suggestion to make speech distinct in a cinema hall. explain the reason for your answer. hey guys don't joke ok it's my homework answer fast .