Science skills: graphing, applying the scientific method, and scientific writing example#1

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

The crank oa rotates in the vertical plane with a constant clockwise angular velocity ω0 of 5.6 rad/s. for the position where oa is horizontal, calculate the force under the light roller b of the 10.6-kg slender bar ab.