Using Equation 5.10, calculate the limiting current density for a fuel cell cathode running on air at STP. Assume only O2 and N2 and ignore the presence of water vapor. Assume that the diffusion layer is 500 μm thick and has a porosity of 40%.

the 2 figures are congruent bc if you reflect abcd over the y axis then over the d axis the figures overlap

to have more of what you want like money

step-by-step explanation:

save it by not spending on unnecessary stuff and have more

(a) common ratio in the given sequence is, 3

(b) push ups will do kendall do on the 20th week

step-by-step explanation:

geometric sequence is a sequence of numbers that follows a pattern were the next term is found by multiplying by a constant called the common ratio(r)

(a)

given the sequence: 6 , 18 , 54 , 162 ,

this sequence is geometric sequence where each term is 3 times the previous term.

therefore,

common ratio(r) = 3.

(b)

a formula for nth term of geometric sequence is given by;

,   where r is the common ratio between the successive terms and is the first term,

to find how many push ups will kendall do on the 20th week.

here. n = 20th term.

in the given sequence first term

then;

simplify:

therefore, push ups will do kendall do on the 20th week

she has read 414 pages of her book

hope i could you