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19 Oct 2018

1) SIR Model:

S'=-.002SI

I'=.0002SI-.5I

R'=.05I

a) How long does this disease last?

b) How many suspects are there when the epidemic peaks?

c)Modify the model, to include all of these change ( one model, not one for each change.)

i) in the new disease , which is transmitted by sneezing , people sneeze twice as much. ii) Five days after recovering from the disease, people loose their immunity and become susceptible agian. ii) Every day 4% of the infected people becoe zombies , which kill recovereds whenever they can.

2) Put a 70 degree bread with cooling coefficeint .1 in a hot oven to bake. Three mintues later, its 100 degrees. How hot is the oven?

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Bunny Greenfelder
Bunny GreenfelderLv2
21 Oct 2018

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