subject
Engineering, 23.09.2019 17:30 droidd133

You give tours on the great lakes and talk about points of interest. a lighthouse typically has 2 beacons that rotate together—but not necessarily facing opposite directions. in that way, it can be a shorter time between the first and second flashes than between the second flash and the third flash (when the first beacon comes around for the second time). one way of identifying which lighthouse you are looking at is to find the ratio of the short time between flashes to the long time between flashes. if the beacons are set 120° apart along the rotation, as shown below, what is this ratio?
a diagram of a lighthouse beacon. the lighthouse is circular. beacon 1 and 2 are 120 degrees apart.
1: 120
120: 1
1: 3
3: 1
1: 2

ansver
Answers: 2

Other questions on the subject: Engineering

image
Engineering, 04.07.2019 18:10, danksans7011
The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false
Answers: 1
image
Engineering, 04.07.2019 18:10, lerasteidl
Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?
Answers: 3
image
Engineering, 04.07.2019 18:10, agpraga23ovv65c
Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.
Answers: 2
image
Engineering, 04.07.2019 18:10, mirmir62
Machinery that is a key part of the process and without which the plant or process cannot function is classifed as: (clo4) a)-critical machinery b)-essential machinery c)-general purpose machinery d)-none of the specified options.
Answers: 1
You know the right answer?
You give tours on the great lakes and talk about points of interest. a lighthouse typically has 2 be...

Questions in other subjects:

Konu
Biology, 07.12.2020 22:00
Konu
Mathematics, 07.12.2020 22:00