Resistivity measurements on the leaves of corn plants are a good way to assess stress and overall health. the leaf of a corn plant has a resistance of 2.3 mω measured between two electrodes placed 20 cm apart along the leaf. the leaf has a width of 2.1 cm and is 0.20 mm thick. a. what is the resistivity of the leaf tissue? b. is this greater than or less than the resistivity of muscle tissue in the human body?

Explanation:

Given

resistance of the plant R =2.3 MΩ

separation between the electrode L= 20 cm

width of the leaf B= 2.1 cm

thickness t=0.20 mm

Area of the leaf= t×B

= 0.20 mm×2.1 cm=

Resistance of the leaf related to length and area

plugging values we get

it is very well related to a lot of things but with my limited knowledge i can confidently say that the answer is space.

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)