CONCEPT. INTEG. SCI. -ACCESS W/ ETEXT
3rd Edition
ISBN: 9780135626566
Author: Hewitt
Publisher: INTER PEAR
expand_more
expand_more
format_list_bulleted
Question
Chapter 20, Problem 52TE
To determine
To find:
The way in which embryonic heart is able to beat without the control of the nervous system.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A proton moves at 5.20 × 105 m/s in the horizontal direction. It enters a uniform vertical electric field with a magnitude of 8.40 × 103 N/C. Ignore any gravitational effects.
(a) Find the time interval required for the proton to travel 6.00 cm horizontally.
83.33
☑
Your response differs from the correct answer by more than 10%. Double check your calculations. ns
(b) Find its vertical displacement during the time interval in which it travels 6.00 cm horizontally. (Indicate direction with the sign of your answer.)
2.77
Your response differs from the correct answer by more than 10%. Double check your calculations. mm
(c) Find the horizontal and vertical components of its velocity after it has traveled 6.00 cm horizontally.
5.4e5
V
×
Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. I + [6.68e4
Your response differs significantly from the correct answer. Rework your solution from the beginning and check each…
(1)
Fm
Fmn
mn
Fm
B
W₁
e
Fmt
W
0
Fit
Wt
0
W
Fit
Fin
n
Fmt
n
As illustrated in Fig.
consider the
person
performing extension/flexion movements of the lower leg
about the knee joint (point O) to investigate the forces and
torques produced by muscles crossing the knee joint. The
setup of the experiment is described in Example
above.
The geometric parameters of the model under investigation,
some of the forces acting on the lower leg and its free-body
diagrams are shown in Figs. and For this system, the
angular displacement, angular velocity, and angular accelera-
tion of the lower leg were computed using data obtained
during the experiment such that at an instant when 0 = 65°,
@ = 4.5 rad/s, and a = 180 rad/s². Furthermore, for this sys-
tem assume that a = 4.0 cm, b = 23 cm, ß = 25°, and the net
torque generated about the knee joint is M₁ = 55 Nm. If the
torque generated about the knee joint by the weight of the lower
leg is Mw 11.5 Nm, determine:
=
The moment arm a of Fm relative to the…
The figure shows a particle that carries a charge of 90 = -2.50 × 106 C. It is moving along the +y
->
axis at a speed of v = 4.79 × 106 m/s. A magnetic field B of magnitude 3.24 × 10-5 T is directed
along the +z axis, and an electric field E of magnitude 127 N/C points along the -x axis.
Determine (a) the magnitude and (b) direction (as an angle within x-y plane with respect to +x-
axis in the range (-180°, 180°]) of the net force that acts on the particle.
+x
+z
AB
90
+y
Chapter 20 Solutions
CONCEPT. INTEG. SCI. -ACCESS W/ ETEXT
Ch. 20 - Prob. 1RCCCh. 20 - How does getting rid of cellular wastes require...Ch. 20 - What stimulates the heart to beat?Ch. 20 - What makes the lub-dubb sound of the heartbeat?Ch. 20 - Prob. 5RCCCh. 20 - Trace the path of blood through the body,...Ch. 20 - What are the three types of blood cells, and what...Ch. 20 - Trace the path of air as it moves to the alveoli.Ch. 20 - What structures in the trachea help keep it open?Ch. 20 - Prob. 10RCC
Ch. 20 - What does digestion accomplish?Ch. 20 - What are the functions of saliva?Ch. 20 - What prevents food from going into the trachea...Ch. 20 - What happens to food while it is in the stomach?Ch. 20 - What structures increase the surface area...Ch. 20 - Prob. 16RCCCh. 20 - What are some of the important minerals you obtain...Ch. 20 - What is metabolic syndrome?Ch. 20 - What are some of the benefits of exercise?Ch. 20 - Prob. 20RCCCh. 20 - How does fluid move from the circulatory system...Ch. 20 - Prob. 22RCCCh. 20 - What is the function of the loop of henle?Ch. 20 - What are two functions of the lymphatic system?Ch. 20 - Prob. 25RCCCh. 20 - Prob. 26RCCCh. 20 - What is an antigen?.Ch. 20 - Prob. 28RCCCh. 20 - What is the function of a memory cell?Ch. 20 - What is the structure of hemoglobin? Which part of...Ch. 20 - How many oxygen molecules can one molecule of...Ch. 20 - Prob. 32TISCh. 20 - What is blood pressure?Ch. 20 - What is the difference between systolic blood...Ch. 20 - What health issues are associated with high blood...Ch. 20 - What is the diaphragm? What is its role in...Ch. 20 - What happens to the volume of the thoracic cavity...Ch. 20 - Prob. 38TISCh. 20 - Prob. 39TISCh. 20 - What happens to the filtrate in the second branch...Ch. 20 - Prob. 41TISCh. 20 - Prob. 45TCCh. 20 - Prob. 46TCCh. 20 - Prob. 47TSCh. 20 - A red blood cell has no nucleus and is therefore...Ch. 20 - A typical person has a heart rate of 70 beats per...Ch. 20 - Prob. 50TECh. 20 - How does playing tennis or jumping rope require...Ch. 20 - Prob. 52TECh. 20 - Why are the atria of the heart less muscular than...Ch. 20 - The pumping of the heart does most of the work...Ch. 20 - Where in the body blood is most oxygenated?Ch. 20 - Prob. 56TECh. 20 - Prob. 57TECh. 20 - Prob. 58TECh. 20 - Why is carbon monoxide toxic? What effect does it...Ch. 20 - Why does blood pressure decrease as blood flows...Ch. 20 - Prob. 61TECh. 20 - High blood pressure is usually treated with...Ch. 20 - Which functions, other than acquiring oxygen for...Ch. 20 - Prob. 64TECh. 20 - Prob. 65TECh. 20 - Prob. 66TECh. 20 - What role do the rib muscles and rib cage play in...Ch. 20 - What is the role of air pressure in inhaling and...Ch. 20 - Is breathing a voluntary or involuntary action?Ch. 20 - Prob. 70TECh. 20 - Prob. 71TECh. 20 - Prob. 72TECh. 20 - What happens to food in the small intestine?Ch. 20 - Prob. 74TECh. 20 - Prob. 75TECh. 20 - Prob. 76TECh. 20 - What factors make a person more likely to develop...Ch. 20 - Prob. 78TECh. 20 - Prob. 79TECh. 20 - What is the difference between elimination feces...Ch. 20 - Does concentrating urine require energy? If so,...Ch. 20 - Prob. 82TECh. 20 - Prob. 83TECh. 20 - Prob. 84TECh. 20 - Prob. 85TECh. 20 - Why is the innate immune system described as...Ch. 20 - Prob. 87TECh. 20 - Prob. 88TECh. 20 - Prob. 89TECh. 20 - How does a vaccine protect you from disease?Ch. 20 - Several of your senses provide examples of how...Ch. 20 - How do the arterioles react when you are running?...Ch. 20 - Prob. 93TDICh. 20 - Why shouldnt you talk with your mouth full not...Ch. 20 - If you hold a piece of cracker in your mouth...Ch. 20 - Prob. 96TDICh. 20 - Prob. 97TDICh. 20 - Prob. 98TDICh. 20 - What do you think explains the placebo effect?Ch. 20 - The leading causes of death in low-income...Ch. 20 - Prob. 1RATCh. 20 - Prob. 2RATCh. 20 - Blood pressure is highest in the a arterioles. b...Ch. 20 - Oxygen moves from the alveoli in the lungs into...Ch. 20 - When do muscles in the diaphragm and rib cage...Ch. 20 - Prob. 6RATCh. 20 - Prob. 7RATCh. 20 - The stretchy sac where urine is temporarily stored...Ch. 20 - Prob. 9RATCh. 20 - Which of the following is associated with the...
Knowledge Booster
Similar questions
- Three charged particles are located at the corners of an equilateral triangle as shown in the figure below (let q = 1.00 μC, and L = 0.850 m). Calculate the total electric force on the 7.00-μC charge. magnitude direction N ° (counterclockwise from the +x axis) y 7.00 με 9 L 60.0° x -4.00 μC ①arrow_forward(a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 9.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) Imagine adding electrons to the pin until the negative charge has the very large value 1.00 mC. How many electrons are added for every 109 electrons already present?arrow_forward(a) A physics lab instructor is working on a new demonstration. She attaches two identical copper spheres with mass m = 0.180 g to cords of length L as shown in the figure. A Both spheres have the same charge of 6.80 nC, and are in static equilibrium when 0 = 4.95°. What is L (in m)? Assume the cords are massless. 0.180 Draw a free-body diagram, apply Newton's second law for a particle in equilibrium to one of the spheres. Find an equation for the distance between the two spheres in terms of L and 0, and use this expression in your Coulomb force equation. m (b) What If? The charge on both spheres is increased until each cord makes an angle of 0 = 9.90° with the vertical. If both spheres have the same electric charge, what is the charge (in nC) on each sphere in this case? 9.60 Use the same reasoning as in part (a), only now, use the length found in part (a) and the new angle to solve for the charge. ncarrow_forward
- A proton moves at 5.20 x 105 m/s in the horizontal direction. It enters a uniform vertical electric field with a magnitude of 8.40 × 103 N/C. Ignore any gravitational effects. (a) Find the time interval required for the proton to travel 6.00 cm horizontally. 83.33 Your response differs from the correct answer by more than 10%. Double check your calculations. ns (b) Find its vertical displacement during the time interval in which it travels 6.00 cm horizontally. (Indicate direction with the sign of your answer.) 2.77 Your response differs from the correct answer by more than 10%. Double check your calculations. mm (c) Find the horizontal and vertical components of its velocity after it has traveled 6.00 cm horizontally. = 5.4e5 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. I + 6.68e4 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step…arrow_forward(a) A physics lab instructor is working on a new demonstration. She attaches two identical copper spheres with mass m = 0.180 g to cords of length L as shown in the figure. A Both spheres have the same charge of 6.80 nC, and are in static equilibrium when = 4.95°. What is L (in m)? Assume the cords are massless. 0.150 Draw a free-body diagram, apply Newton's second law for a particle in equilibrium to one of the spheres. Find an equation for the distance between the two spheres in terms of L and 0, and use this expression in your Coulomb force equation. m (b) What If? The charge on both spheres is increased until each cord makes an angle of 0 = 9.90° with the vertical. If both spheres have the same electric charge, what is the charge (in nC) on each sphere in this case? 13.6 ☑ Use the same reasoning as in part (a), only now, use the length found in part (a) and the new angle to solve for the charge. nCarrow_forwardA proton moves at 5.20 x 105 m/s in the horizontal direction. It enters a uniform vertical electric field with a magnitude of 8.40 × 10³ N/C. Ignore any gravitational effects. (a) Find the time interval required for the proton to travel 6.00 cm horizontally. 1.15e-7 ☑ Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. ns (b) Find its vertical displacement during the time interval in which it travels 6.00 cm horizontally. (Indicate direction with the sign of your answer.) 5.33e-3 ☑ Your response is off by a multiple of ten. mm (c) Find the horizontal and vertical components of its velocity after it has traveled 6.00 cm horizontally. | ↑ + jkm/sarrow_forward
- A proton moves at 5.20 105 m/s in the horizontal direction. It enters a uniform vertical electric field with a magnitude of 8.40 103 N/C. Ignore any gravitational effects. (a) Find the time interval required for the proton to travel 6.00 cm horizontally. (b) Find its vertical displacement during the time interval in which it travels 6.00 cm horizontally. (Indicate direction with the sign of your answer.)arrow_forwardThe figure below shows the electric field lines for two charged particles separated by a small distance. 92 91 (a) Determine the ratio 91/92. 1/3 × This is the correct magnitude for the ratio. (b) What are the signs of q₁ and 92? 91 positive 92 negative ×arrow_forwardPlease help me solve this one more detail, thanksarrow_forward
- A dielectric-filled parallel-plate capacitor has plate area A = 20.0 ccm2 , plate separaton d = 10.0 mm and dielectric constant k = 4.00. The capacitor is connected to a battery that creates a constant voltage V = 12.5 V . Throughout the problem, use ϵ0 = 8.85×10−12 C2/N⋅m2 . Find the energy U1 of the dielectric-filled capacitor. The dielectric plate is now slowly pulled out of the capacitor, which remains connected to the battery. Find the energy U2 of the capacitor at the moment when the capacitor is half-filled with the dielectric. The capacitor is now disconnected from the battery, and the dielectric plate is slowly removed the rest of the way out of the capacitor. Find the new energy of the capacitor, U3. In the process of removing the remaining portion of the dielectric from the disconnected capacitor, how much work W is done by the external agent acting on the dielectric?arrow_forwardIn (Figure 1) C1 = 6.00 μF, C2 = 6.00 μF, C3 = 12.0 μF, and C4 = 3.00 μF. The capacitor network is connected to an applied potential difference Vab. After the charges on the capacitors have reached their final values, the voltage across C3 is 40.0 V. What is the voltage across C4? What is the voltage Vab applied to the network? Please explain everything in steps.arrow_forwardI need help with these questions again. A step by step working out with diagrams that explains more clearlyarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Foundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
Stars and Galaxies (MindTap Course List)PhysicsISBN:9781337399944Author:Michael A. SeedsPublisher:Cengage Learning
Horizons: Exploring the Universe (MindTap Course ...PhysicsISBN:9781305960961Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
An Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage Learning
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Stars and Galaxies (MindTap Course List)
Physics
ISBN:9781337399944
Author:Michael A. Seeds
Publisher:Cengage Learning
Horizons: Exploring the Universe (MindTap Course ...
Physics
ISBN:9781305960961
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
An Introduction to Physical Science
Physics
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:Cengage Learning