The diagram shows a heating curve for a substance. which segment shows the substance changing from a gas to a liquid? x-y y-x w-x x-w

Which is not a source of noise pollution? a)airplanes b)acid rain c)machines d)cars

3. on your graph, the data points between the black squares are data for elements with atomic numbers 3 through 9. locate these elements on your periodic table. what term or description would you use to identify these elements with respect to the periodic table?

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?