Apendulum is made up of a small sphere of mass 0.500 kg attached to a string of length 0.750 m. the sphere is swinging back and forth between point a, where the string is at the maximum angle of 35.0∘ to the left of vertical, and point c, where the string is at the maximum angle of 35.0∘ to the right of vertical. the string is vertical when the sphere is at point b. calculate how much work the force of gravity does on the sphere from a to b. express your answer with the appropriate units.

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?

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance