Four students all do the same experiment for the science fair. They test reaction times for pushing a button when a specific color is shown. Their data is as follows Reaction Time (seconds) throughout 6 trials :

Student 1: 0.44, 0.41, 0.47, 0.39, 0.46, 0.42

Student 2: 0.35, 0.43, 0.38, 0.39, 0.42, 0.44

Student 3: 0.41, 0.52, 0.57, 0.46, 0.55, 0.49

Student 4: 0.42, 0.43, 0.41, 0.42, 0.41, 0.42

ANSWER OPTIONS:

Put the students in order from most to least reliable data

- student 1,2,3,4
-student 2,1,4,3
- student 4,1,2,3
-student 3,2,1,4

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2

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?