Divide 1.49457 × 10^11 meters , the average distance from the sun to earth by 3.00 ×10^8 meters per second and the speed of light in the vaccum. Write your answer in scientific notation with the correct units and the appropriate number of significant figures.

Ababy stroller is a rest on top of a hill which is 10 m high. the stroller and baby have a mass of 20 kg. what is the potential energy of the baby and stroller?

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

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?