Physics, 18.10.2019 00:20 sarahmolina246
A1420-kg car is traveling with a speed of 12.4 m/s. what is the magnitude of the horizontal net force that is required to bring the car to a halt in a distance of 78.0 m?
Answers: 1
Physics, 21.06.2019 15:30, Ezekielcassese
Taylor's experiment: 1. accurately measured the speed of light 2. locked together the phases of two light sources so that the interference pattern would not shift 3. showed that man's reaction time was much slower than the speed of light 4. showed that individual photons have wave characteristics
Answers: 2
Physics, 21.06.2019 23:30, hardwick744
Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.
Answers: 1
Physics, 23.06.2019 09:30, madleneinejessup
You are in a car that is traveling along highway 99 at a constant speed of 16 m/s. suddenly you see a truck also traveling at a constant speed (3.0 m/s) that is on a track to cross your lane from an alley on the right and is moving into your lane (which you can’t get out of, because of broader safety concerns like head on traffic in the other lane). your car’s maximum acceleration is 6.0 m/s2 (either way, gettingfaster or slower) and your reaction time of 0.75 s between first seeing the truck and applying the brake or the accelerator. the distance from the side street, where you first notice the truck, to the right edge of your lane is 2.0 m and the lane also has a fixed width of 4.0m, check for yourself that all these numbers are reasonable. you will assume a reasonable size for your car. the truck is 3.0 m wide. a) how long will it take the truck from the moment you notice it, to block enough of your lane so you can’t slip past while also staying in your own lane (in seconds)? b) how far will your car travel (in meters) while your brain is figuring out what to do? c) if you decide that braking is in your best interests how long will it take you to come to a complete stop once you begin the process of braking (in s)? d) what is the minimum distance (in m) you must be from the truck to successfully stop before hitting
Answers: 1
A1420-kg car is traveling with a speed of 12.4 m/s. what is the magnitude of the horizontal net forc...
Biology, 20.06.2021 05:50
Mathematics, 20.06.2021 05:50
Mathematics, 20.06.2021 05:50
English, 20.06.2021 05:50
Mathematics, 20.06.2021 05:50
Health, 20.06.2021 05:50
Arts, 20.06.2021 05:50
History, 20.06.2021 05:50