Physics, 11.07.2019 16:00 florencemarti7331
The “reaction time” of the average automobile driver is about 0.7 s. (the reaction time is the interval between the perception of a signal to stop and the application of the brakes.) if an automobile can slow down with an acceleration of 12 ft/s^2 compute the total distance (in feet) covered in coming to a stop after a signal is observed from an initial velocity of 55 mi/h. let 1 mi/h = 1.466 ft/s.
Answers: 1
Physics, 22.06.2019 05:40
Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.
Answers: 3
Physics, 22.06.2019 07:10
Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers
Answers: 1
Physics, 22.06.2019 12:10
Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f
Answers: 2
Physics, 22.06.2019 13:00
Ways that industry and agriculture use physical properties to separate substances
Answers: 1
The “reaction time” of the average automobile driver is about 0.7 s. (the reaction time is the inter...
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