In this lab you will use a cart and a track to explore Newton's second law of motion. You will vary two
different variables and determine how each one affects
how quickly the cart moves along the track. In the space
below, write a scientific question that you can answer by
doing this experiment.

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

The least penetrating form of radiation is