2 answers

Problem 22.21 Resistivity measurements on the leaves of corn plants are a good way to assess...

Question:

Problem 22.21

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 of2.1M? measured between two electrodes placed20 cm apart along the leaf. The leaf has a width of2.8cm and is 0.20 mm thick.

Part A

What is the resistivity of the leaf tissue?

Part B

Is this greater than or less than the resistivity of muscle tissue in the human body?


Answers

Resistivity = Resistance * area / length.

.

20 * 10 ^ 6=rho * .2/0.025*0.0002'

rho =20*10^6*0.025*0.0002/0.2
=500 ohm m

rho for human is 10 ohm /m

therefore its more

.

Similar Solved Questions

1 answer
A hanging beam is pin-supported at  and  and is subject to a uniform distributed load with magnitude  from  to  and a...
A hanging beam is pin-supported at  and  and is subject to a uniform distributed load with magnitude  from  to  and a moment with magnitude  at . The corresponding shear force diagram is illustrated below (drawn to scale). (a) Draw the bend...
1 answer
You wish to buy a car for $12,000 at a 5% annual interest rate, compounded monthly....
You wish to buy a car for $12,000 at a 5% annual interest rate, compounded monthly. The loan will be repaid in 5 years with monthly payments. What is your monthly payment (calculated with the equations on the next page)? Compare your answer to that obtained with the built in function, PMT. Be sure t...
1 answer
Question Help X E4-25A (similar to) Several years after reengineering its production process. Batore Corporation hired...
Question Help X E4-25A (similar to) Several years after reengineering its production process. Batore Corporation hired a new controle Tammy English Click the icon to win mon) For the upcoming year, Bitmone's budgeted ABC manufacturing overhead location rates are as follows: Click the icon to vie...
1 answer
XYZ Bank computes the exponentially weighted return volatility for its investment portfolio using 390 historic observations...
XYZ Bank computes the exponentially weighted return volatility for its investment portfolio using 390 historic observations and = .996. What weight would be given to the 2'th last return observation? Note: Your answer must be accurate to within five decimal places....
1 answer
Please answer both for a good review. thanks An object is located at a distance of...
please answer both for a good review. thanks An object is located at a distance of 7.00 cm from a thin lens with a radius of curvature of 66.0 mm. The image of the object is inverted. Is the image real or virtual, and how far is the image from the lens? Real, 6 24 cm o Virtual, 6 24 cm Real 116 cm...
1 answer
Check my o Which of the following accounts is increased with a debit? 0:32:08 Multiple Choice...
Check my o Which of the following accounts is increased with a debit? 0:32:08 Multiple Choice Insurance expense Service revenue Accounts payable Common stock 10 of 20 ! Next > < Prev...
1 answer
If u= av+bw, then u (vxw)= abu (v xw)) bo (a+b) (u (v xw)) od alu....
If u= av+bw, then u (vxw)= abu (v xw)) bo (a+b) (u (v xw)) od alu. (v x W)) this response...
1 answer
Consider the following: x = t3 - 12t y = 2 - 1 (a) Find the...
Consider the following: x = t3 - 12t y = 2 - 1 (a) Find the following. dy 2t dr = 312 - 12 dy dr2 2 6t (b) For which values of t is the curve concave upward? (If you need to use co or -co, enter INFINITY or -INFINITY, respectively.) X *)...
1 answer
What happens to a firm that reinvests its earnings at a rate equal to the firm's...
What happens to a firm that reinvests its earnings at a rate equal to the firm's required return? Multiple Choice a)Its stock price will remain constant. b)Its stock price will increase by the sustainable growth rate. c)Its stock price will decline unless the dividend payout ratio is zero. d)Its...
1 answer
(a) Calculate the percent ionization of 0.00180 M propionic acid (Ka = 1.3e-05). % ionization =____________...
(a) Calculate the percent ionization of 0.00180 M propionic acid (Ka = 1.3e-05). % ionization =____________ % (b) Calculate the percent ionization of 0.00180 M propionic acid in a solution containing 0.0590 M sodium propionate. % ionization = __________ %...
1 answer
A 0.033-kg bullet is fired vertically at 208 m/s into a 0.15-kg baseball that is initially...
A 0.033-kg bullet is fired vertically at 208 m/s into a 0.15-kg baseball that is initially at rest. How high does the combined bullet and baseball rise after the collision, assuming the bullet embeds itself in the ball?...
1 answer
Post-Closing Trial Balance December 31, 2018 Debit Credit Cash    &n...
Post-Closing Trial Balance December 31, 2018 Debit Credit Cash      18,200 Accounts receivable        3,960 Supplies        1,380 Prepaid insurance    &nb...
1 answer
Find the radius of convergence and the interval of convergence. Š (4x - 5) 2+1 3/2...
Find the radius of convergence and the interval of convergence. Š (4x - 5) 2+1 3/2 n Find the Taylor series for the given function centered at the indicated value of a. f(x)=, 0 = 1...
1 answer
Indicate whether each of the following news items is a positive or a normative statement. 1....
Indicate whether each of the following news items is a positive or a normative statement. 1. A ban on smoking will lower the healthcare budget 2. Nuclear energy is cleaner than coal and oil based energy 3. More police on inner-city streets will lower the crime rate. 4. Netflix original programming i...
1 answer
A slingshot obeying Hooke’s law is used to launch pebbles vertically into the air. You observe...
A slingshot obeying Hooke’s law is used to launch pebbles vertically into the air. You observe that if you pull a pebble back 11.2 cm against the elastic band, the pebble goes 5.7 m high. A)Assuming that air drag is negligible, how high will the pebble go if you pull it back 22.4 cm instead? B...
1 answer
Overview and outline from a microbiology point of view Ch. 19. Disorder associated with the immune...
overview and outline from a microbiology point of view Ch. 19. Disorder associated with the immune system 1. Grave's disease 2. Rheumatoid arthritis 3. Myasthenia gravis 4. Multiple sclerosis aDorasitic infections...
1 answer
Use the following information for the following 4 questions. On December 31, the Tom, Inc. general...
Use the following information for the following 4 questions. On December 31, the Tom, Inc. general ledger contained the following balances: Trade Accounts Receivable $ 615,000 Allowance for Doubtful Accounts 1,200 (debit) Net Credit Sales $ 1,529,000 Aging of the accounts receivable balance on Decem...