Mathematics, 14.08.2019 08:10 sharondacarruth7853

You are arguing over a cell phone while trailing an unmarked police car by 25 m; both your car and the police car are traveling at 110 km/h. your argument diverts your attention from the police car for 2.0 s (long enough for you to look at the phone and yell, “i won’t do that! ”). at the beginning of that 2.0 s, the police officer begins braking suddenly at 5.0 m/s². (a) what is the separation between the two cars when your attention finally returns? suppose that you take another 0.40 s to realize your danger and begin braking. (b) if you too brake at 5.0 m/s², what is your speed when you hit the police car?

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 17:20

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Answers: 2

Answer

Mathematics, 21.06.2019 20:30

Select all the expressions that will include a remainder.

Answers: 1

Answer

Mathematics, 21.06.2019 22:00

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b

Answers: 1

Answer

Mathematics, 21.06.2019 23:30

Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.

Answers: 1

Answer

You know the right answer?

You are arguing over a cell phone while trailing an unmarked police car by 25 m; both your car and...

Questions