Engineering, 19.03.2021 18:00 colebash88

A miner is trapped in a chamber having 3 doors. The first door opens in a tunnel that takes the miner to safety after 2 hours. The second door opens in a tunnel that returns ours. The third door al chamber after 3 hours. Suppose that the miner always chooses any of the doors with equal probability (he does not remember or mark doors). Let random variable X be the time it takes for the miner to reach outside of the mine safely. Calculate the expected time to reach safety, E[X], and simulate the process to justify your calculated result.

Answers: 1

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 23:20, abbz13

Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct

Answers: 3

continue

Engineering, 04.07.2019 18:10, anna22684

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.

Answers: 2

continue

Engineering, 04.07.2019 18:10, DestyHilBan1183

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

Answers: 3

continue

Engineering, 04.07.2019 18:10, juansoto227711

Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery

Answers: 2

continue

You know the right answer?

A miner is trapped in a chamber having 3 doors. The first door opens in a tunnel that takes the mine...