Physics

Physics, 10.07.2019 01:00, DRock4976

What should happen to the demand for speed (measured by the average speed on highways) once airbags are included on cars?

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Mathematics, 23.06.2019 05:30, sixtomomtermont

Two cars leave town at the same time and travel in opposite directions. the average rate of speed of one car is 15 miles per hour faster than the average rate of speed of the other car. the cars are 375 miles apart after three hours. find the average rate of speed of the two cars?

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Mathematics, 24.06.2019 05:00, BrandyLeach01

Two cars leave town at the same time in opposite directions. the average rate of speed of one car is 15 miles per hour faster than the average rate of speed of the other car. the cars are 375 miles apart after 3 hours find the average weight of speed of the two cars.

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Mathematics, 09.07.2019 17:00, AT3P

Suppose that a police officer measured the speed of cars on a highway for an hour. the average speed of the cars was 72 and the standard deviation was 4.6. however, since the radar gun was biased, 0.9 is added to every observation in the dataset. what will the new mean be?

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Mathematics, 15.07.2019 23:20, coltbergstrom

1. the national highway traffic safety administration indicated that 284 people died between 1990 and 2007 as a result of an injury caused by an airbag. newer airbags open at a speed proportional to the speed of an impact. older models open at a constant speed, up to 200 mph, equal to the force of a heavyweight knockout punch. a random sample of 40 older-model airbags was obtained and tested. the average opening speed for each older-model airbag was 173.88. airbag opening speed is normally distributed with =10 mph. compute a 90% confidence interval for the mean opening speed in older-model airbags. be sure to check all necessary assumptions and conditions, and interpret your interval within the context of the problem.

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