Name Directions: Motion is a change in position relative to a frame of reference or reference point.
Use your understanding of a frame of reference to answer the following questions.
1. Baseball Game
A. Imagine you are the batter at the plate and describe what you see as the ball leaves your bat towards
straight-away center, shortly after it is thrown toward the plate. Your body is the frame of reference,
B. Imagine you are the pitcher on the opposing team and describe the same scene, using your body as the
frame of reference
C. Imagine you are a fan sitting in the section directly to the right of first base and describe the same scene,
using your body as the frame of reference.

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?