Which action describes the first step in both scientific investigation and technological design? researching how solar panels work
identifying a need for a solar panel
communicating to the team that solar panels are easy to install
designing a solution by sketching a prototype for a solar panel

Determine the maximum r-value of the polar equation r =3+3 cos 0

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?

Blank liquids and gases exert a buoyant force on objects placed in them