Which statement is most true about a hypothesis?

it is a conclusion drawn in an investigation.

it is an observation that you make.

it is a trend observed in data.

it is a testable solution to a question.

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms

What produces wave a)sound b) heats c)transfer of energy d)vibrations

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.