A uniform meter stick, supported at the 30cm mark, is balanced when a 0.5N weight is hung at the 0.0cm mark. What is the weight of the meter stick?

Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.

Which of the following best describes the shape of earth's orbit? a. ellipticalb. circularc. spirald. figure eight

The topics covered by the study of thermodynamics include a. energy changes during heating. b. energy changes during chemical reactions. c. color changes during chemical reactions. d. both (a) and (b)