Answers: 2
Physics, 22.06.2019 22:50
The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?
Answers: 3
Physics, 23.06.2019 00:00
You are driving to the grocery store at 20 m/s. you are 110m from an intersection when the traffic light turns red. assume that your reaction time is 0.50s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes? what acceleration will bring you to rest right at the intersection? how long does it take you to stop after the light changes? the known values: vi=20m/s xi=110m t=.50s vf=0m/s xf=0m a=?
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Physics, 23.06.2019 09:10
Many science fiction movies and tv shows have detected using a nuclear weapon to destroy astroids what problems does plait see with this plan
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Physics, 23.06.2019 12:30
Write a brief essay describing the minimum requirements for any electric circuit. within your essay,
Answers: 1
An emf of 0.50 V is induced across a coil when the current through it changes uniformly from 0.55 to...
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