College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
thumb_up100%
Chapter 1, Problem 36PE
Assuming one nerve impulse must end before another can begin, what is the maximum firing rate of a nerve in impulses per second?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
A 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.)
The World Health Organization differentiates bone diseases using bone density measurements.
The table given below is the criteria for diagnosing different bone diseases (assuming that the
mean normal bone density is 1.8 g/cm and that 1SD is approximately 10% of the mean bone
density).
CATEGORY
Osteoporosis
Osteopenia (Low
Bone Mass)
1.98 g/cm3
Normal Bone Density
1.98
Osteopetrosis
What would be the diagnosis of a bone sample if its weight in air is 52 grams and its weight in
water is 20 grams?
For mammals, resting heart rate scales as mass to the -1/4th power; that is, R is proportional to m^-1/4. The heart rate of a 5000 kg elephant is 30 bpm (beats per minute). What do you predict for the heart rate of a 5.0 kg monkey?
Chapter 1 Solutions
College Physics
Ch. 1 - Models are particularly useful in relativity and...Ch. 1 - How does a model differ from a theory?Ch. 1 - If two different theories describe experimental...Ch. 1 - What determines the validity of a theory?Ch. 1 - Certain criteria must be satisfied if a...Ch. 1 - Can the validity of a model be limited, or must it...Ch. 1 - Classical physics is a good approximation to...Ch. 1 - When is it necessary to use relativistic quantum...Ch. 1 - Can classical physics be used to accurately...Ch. 1 - Identify some advantages of metric units.
Ch. 1 - What is the relationship between the accuracy and...Ch. 1 - Prescriptions for vision correction are given in...Ch. 1 - The speed limit on some interstate highways is...Ch. 1 - A car is traveling at a speed of 33 m/s. (a) What...Ch. 1 - Show that 1.0m/s=3.6Km/h. Hint: Show the explicit...Ch. 1 - American football is played on a 100-yd-long...Ch. 1 - Soccer fields vary in size. A large soccer field...Ch. 1 - What is the height in meters of a person who is 6...Ch. 1 - Mount Everest, at 29,028 feet, is the tallest...Ch. 1 - The speed of sound is measured to be 342 m/s on a...Ch. 1 - Tectonic plates are large segments of the Earth's...Ch. 1 - (a) Refer to Table 1.3 to determine the average...Ch. 1 - Suppose that your bathroom scale reads your mass...Ch. 1 - A good-quality measuring tape can be off by 0.50...Ch. 1 - (a) A car speedometer has a 5.0% uncertainty. What...Ch. 1 - An infant's pulse rate is measured to be 1305...Ch. 1 - (a) Suppose that a person has an average heart...Ch. 1 - A can contains 375 mL of soda. How much is left...Ch. 1 - State how many significant figures are proper in...Ch. 1 - (a) How many significant figures are in the...Ch. 1 - (a) If your speedometer has an uncertainty of 2.0...Ch. 1 - (a) A person's blood pressure is measured to be...Ch. 1 - A person measures his or her heart rate by...Ch. 1 - What is the area of a circle 3.102 cm in diameter?Ch. 1 - If a marathon runner averages 9.5 mi/h, how long...Ch. 1 - A marathon runner completes a 42.188-km course in...Ch. 1 - The sides of a small rectangular box are measured...Ch. 1 - When non-metric units were used in the United...Ch. 1 - The length and width of a rectangular room are...Ch. 1 - A car engine moves a piston with a circular cross...Ch. 1 - How many heartbeats are there in a lifetime?Ch. 1 - A generation is about one-third of a lifetime....Ch. 1 - How many times longer than the mean life of an...Ch. 1 - Calculate the approximate number of atoms in a...Ch. 1 - Approximately how many atoms thick is a cell...Ch. 1 - (a) What fraction of Earth's diameter is the...Ch. 1 - (a) Calculate the number of cells in a hummingbird...Ch. 1 - Assuming one nerve impulse must end before another...
Additional Science Textbook Solutions
Find more solutions based on key concepts
1. Why is the quantum-mechanical model of the atom important for understanding chemistry?
Chemistry: Structure and Properties (2nd Edition)
1. An object is subject to two forces that do not point in opposite directions. Is it possible to choose their ...
College Physics: A Strategic Approach (3rd Edition)
7. Both Tim and Jan (problem 6) have a widow’s peak (see Module 9.8), but Mike has a straight hairline. What ar...
Campbell Biology: Concepts & Connections (9th Edition)
14. An experienced goldfish breeder receives two unusual male goldfish. One is black rather than gold, and the ...
Genetic Analysis: An Integrated Approach (3rd Edition)
Body, Heal Thyself The precision of mitotic cell division is essential for repairing damaged tissues like those...
Biology: Life on Earth with Physiology (11th Edition)
25. The 100 kg block in FIGURE EX7.25 takes 6.0 s to reach the floor after being released from rest. What is th...
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- (a) Suppose that a person has an average heart rate of 72.0 beats/min. How many beats does he or she have in 2.0 y? (b) In 2.00 y? (c) In 2.000 y?arrow_forwardHeight velocity graphs are used by endocrinologists to follow the progress of children with growth deficiencies. The figure below shows the height velocity curves of an average boy and an average girl between ages 3 and 18. y (cm/yr) 10 8. 6. 4. 2. x (years) 2 4 6 8 10 12 14 16 18 (a) Which curve is for girls and which is for boys? The blue curve is for girls and the black curve is for boys 6. APR 5 66 14 étv 280 MacBook Pro.arrow_forwardA person has a resting blood flow of 6.5 L min-1. The volume of the left ventricle is 152 mL and the ejection rate is 64 %. Calculate the heart rate required. Give your answer in beats per min (BPM), rounded to zero decimal placesarrow_forward
- The average life expectancy in Japan is 81 years. What is this time in SI units?arrow_forwardThe volume of air we breathe in is about 10% of lung capacity perbreath. If the level of PM2.5 is constant at 40 μg/m3 over the wholeyear, how many grams of dust would you inhale in total in one year,assuming that the dust particles in every breath are all collected inyour lung?arrow_forwardAlthough human lung capacity is about 3 liters per lung, the tidal volume, representing the amount of air that is breathed in and out with each breath is much -3 less, typically about 250 cm7 per lung. The cycle of inhalation and exhalation during normal activity can be represented as a sine curve, as shown in the figure below, where the amount of air in each lung before inhalation begins is about 1.09 liters (the functional residual capacity of the lung) and the time on the horizontal axis has been calculated with the average adult breathing rate of 16 breaths per minute. Volume of air in lungs (L) 1.34 1.09 mm minimum height maximum height 15 We can model each lung as a cylinder of radius 5.95 cm in which one end cap is free to move up and down, increasing and decreasing the volume of the model lung during the breathing process. (a) Using the data above, calculate the minimum and maximum heights (in cm) of the model lung during the breathing process. (Round your answers to at least…arrow_forward
- They determined that they can use this exponential model to predict the number of trees in the forest that will be infected after y yearsarrow_forward1) An ant population grows at a daily rate of 3/10 times the current popu- lation. It is known that a constant rate of 36 ants die each day and that the initial number of ants is 400. How long will it take for all ants to die? Solve using 1st order differential equations.arrow_forwardEstimate the number of times an average person's heart beats in a lifetime. Assume the average heart rate is 69 beats/min and a life span of 75 yr. a) 3 x 108 beats O b) 3 × 1010 beats c) 3 × 10° beats d) 3 x 107 beatsarrow_forward
- A typical person has an average heart rate of 68.0 beats/min. Pay close attention to significant figures in this question. How many beats n₁ does she have in 2.0 years? How many beats n₂ in 2.00 years? How many beats n3 in 2.000 years? Question Credit: OpenStax College Physics n₁ = n₂ = n3 = beats beats beatsarrow_forwardIn biology, a vector is a disease-carrying organism, such as a mosquito or a bat, that is itself not infected with the disease. One such disease, West Nile Virus, is spread primarily by migratory birds. The figure below shows the spread of the virus across the continental United States from 1999 to 2004. San Diego 2004 1 550 mi Minneapolis- 2002 1500 mi New York 1999 1 100 mi Miami 2001 i West Nile Virus was first detected in New York in 1999. Two years later, the virus had spread to Miami, a distance of 1,100 miles at a direction of 7.00° west of south from New York. In 2002, the virus was found in Minneapolis, 1,500 miles at a direction 37.0° west of north from Miami. Finally, the virus arrived in San Diego in 2004, a distance of 1,550 miles at a direction 25.0° south of west. (a) What is the net displacement (in mi) of the virus from 1999 to 2004? (Give the direction in degrees south of west, rounded to at least three significant figures.) magnitude mi direction o south of west (b)…arrow_forward(a) Suppose that a person has an average heart rate of 72.0 beats/min. How many beats does he or she have in 2.0 years? (b) In 2.00 years? (c) In 2.000 years?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Half life | Radioactivity | Physics | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=IDkNlU7zKYU;License: Standard YouTube License, CC-BY