General Physics, 2nd Edition
2nd Edition
ISBN: 9780471522782
Author: Morton M. Sternheim
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Question
Chapter 18, Problem 26E
To determine
The radius of the myelinated axon.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
There are 11 less rabbits than chicken in the farm. The animals have a total of 160 legs. How r min chicken (s) i(s)/(a)re there?
Assuming one nerve impulse must end before anothercan begin, what is the maximum firing rate of a nerve inimpulses per second?
A nerve impulse is propagated across a synapse when the neurotransmitter acetylcholine is released from the pre-synaptic membrane and diffuses across the 20-nmnm -wide synaptic cleft to the post-synaptic membrane. How long does it take a nerve signal to cross a synapse? You can assume that the synaptic fluid is essentially water. What is the speed of transmission, in m/sm/s?
Chapter 18 Solutions
General Physics, 2nd Edition
Ch. 18 - Prob. 1RQCh. 18 - Prob. 2RQCh. 18 - Prob. 3RQCh. 18 - Prob. 4RQCh. 18 - Prob. 5RQCh. 18 - Prob. 6RQCh. 18 - Prob. 7RQCh. 18 - Prob. 8RQCh. 18 - Prob. 9RQCh. 18 - Prob. 10RQ
Ch. 18 - Prob. 1ECh. 18 - Prob. 2ECh. 18 - Prob. 3ECh. 18 - Prob. 4ECh. 18 - Prob. 5ECh. 18 - Prob. 6ECh. 18 - Prob. 7ECh. 18 - Prob. 8ECh. 18 - Prob. 9ECh. 18 - Prob. 10ECh. 18 - Prob. 11ECh. 18 - Prob. 12ECh. 18 - Prob. 13ECh. 18 - Prob. 14ECh. 18 - Prob. 15ECh. 18 - Prob. 16ECh. 18 - Prob. 17ECh. 18 - Prob. 18ECh. 18 - Prob. 20ECh. 18 - Prob. 21ECh. 18 - Prob. 24ECh. 18 - Prob. 25ECh. 18 - Prob. 26E
Knowledge Booster
Similar questions
- A B C 300 μm Which denotes the apical meristem in roots? B C D A Darrow_forwardIn stemcell research, stem cells are now harvested from the nasal mucus membrane instead of _________?arrow_forwardA population of E. coli bacteria grows exponentially with time. You believe that the mean time between divisions is t, = 26 min, and that cell death occurs on average after tm = 200 hr. The population starts with 1000 cells. Complete parts (a) through (c). (a) Use the equation N(t) = N, e0-m)t to predict how many cells are present after 3 hours. The number of cells present after 3 hours is. (Do not round until the final answer. Then round to the nearest integer as needed.)arrow_forward
- Laterally from the midline in either jaw, we have eight teeth: two incisors, one canine, two bicuspids (or premolars), and three molars (the last molar being a wisdom tooth). The lateral distances fronm the mandibular joint to the insertion of the masseter muscles, the first bicuspids, and the central incisors, are 0 4L, L. and 1.2L, respectively. (a) What type of lever is involved in biting and chewing with the masseter muscles? (b) For biting in equilibrium with a masseter muscle force of 1,625 N, show that the fo on the first bicuspid of 650 N, assuming there is no force on the central incisors [67]. Draw a force diagram for this. (c) Under these conditions, show that the needed counter force on the central 540 N, now assuming no force on the first bicuspid. Draw a force diagram foarrow_forwardIn a person infected with measles, the virus level N (measured in number of infected cells per ml of blood plasma) reaches a peak density at about t 12 days (when a rash appears) and then decreases fairly rapidly as a result of immune response. The area under the graph of N(t), the t-axis, and the lines t = 0 to t = 12, (as shown in the figure) is equal to the total amount of infection needed to develop symptoms (measured in density of infected cells x time). N= f) 1000- 12 21 The function has been modeled by the function (t) = -t(t - 21)(t + 1). Use this model with six subintervals and their midpoints to estimate the total amount of infection (in (infected cells/mL) - day) needed to develop symptoms of measles.t (infected cells/mL) day Need Help? Read Itarrow_forwardThe primary organs of the respiratory system are the _____, which carry out this ecchange of gases as you breathe. Inhaling moves the diaphragm______and expands the _______.When you _______ the diaphragm relaxes. The diaphragm and ribs return to their original place.arrow_forward
- Draw a graded potential and an action potential on a graph ofmembrane potential versus time?arrow_forwardDetermine the erythrocyte sedimentation rate assuming that the erythrocytes have a spherical shape with a diameter of 8 microns. Take the blood density 1060 kg/m3, the density of the substance of erythrocytes 1090 kg/m3.arrow_forwardIf you are infusing a 1 L Iv bag of a normal saline at a rate of 100 ml per hour, how long will it take for the entire IV bag to infuse into the patient ?arrow_forward
- Helicobacter pylori (H. pylori) is a helically-shaped bacterium that is usually found in the stomach. It burrows through the gastric mucous lining to establish an infection in the stomach's epithelial cells (see photo). Approximately 90% of the people infected with H. pylori will never experience symptoms. Others may develop peptic ulcers and show symptoms of chronic gastritis. The method of motility of H. pylori is a prokaryotic flagellum attached to the back of the bacterium that rigidly rotates like a propeller on a ship. The flagellum is composed of proteins and is approximately 40.0 nm in diameter and can reach rotation speeds as high as 1.50 × 103 rpm. If the speed of the bacterium is 10.0 um/s, how far has it moved in the time it takes the flagellum to rotate through an angular displacement of 5.00 × 107 rad?arrow_forwardHelicobacter pylori (H. pylori) is a helically-shaped bacterium that is usually found in the stomach. It burrows through the gastric mucous lining to establish an infection in the stomach's epithelial cells (see photo). Approximately 90% of the people infected with H. pylori will never experience symptoms. Others may develop peptic ulcers and show symptoms of chronic gastritis. The method of motility of H. pylori is a prokaryotic flagellum attached to the back of the bacterium that rigidly rotates like a propeller on a ship. The flagellum is composed of proteins and is approximately 40.0 nm in diameter and can reach rotation speeds as high as 1.50 x 10³ rpm. If the speed of the bacterium is 10.0 µm/s, how far has it moved in the time it takes the flagellum to rotate through an angular displacement of 5.00 × 10² rad? H. PYLORI CROSSING MUCUS LAYER OF STOMACH Number Zina Deretsky, National Science Foundation/Flickr H.pylori Gastric Epithelial mucin cells gel Units H.pylori raises pH,…arrow_forwardKinesin is a motor protein that moves cargo within cells in a series of rapid 8-nm-longsteps. Each step takes 50 us, and there is an average 15 ms delay between steps. To onesignificant figure, what is the average speed of a Kinesin motor protein?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning