Mrs. Letman’s class wanted to figure out which brand of paper towel would absorb the most water. They performed an experiment on 4 different types of paper towels. The students measured out 5X5 inch paper towels, to make sure each paper towel was the same size. Once the paper towels were measured, they put 20 seconds on the clock, and placed a paper towel in a beaker of water and observed. After the 20 seconds was up the class squeezed as much water out of the paper towels as possible into a graduated cylinder, then recorded their data. They did this for each paper towel. What is the dependent variable in the Paper Towel Experiment?

How is acceleration calculated? a. initial velocity - final velocity / timeb. initial velocity + final velocity / timec. final velocity - initial velocity / timed. final velocity / timele select the best answer from the choices provided0oood00save and exitnextmark this and return

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

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?