College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 2, Problem 77PP
BIO Blood flow in the heart. The human circulatory system is closed—that is, the blood pumped out of the left ventricle of the heart into the arteries is constrained to a series of continuous, branching vessels as it passes through the capillaries and then into the veins as it returns to the heart. The blood in each of the heart’s four chambers comes briefly to rest before it is ejected by contraction of the heart muscle.
77. The velocity of blood in the aorta can be measured directly by using ultrasound techniques. A typical graph of blood velocity as a function of time during a single heartbeat is shown in Figure 2.56. Which of the following is the best interpretation of this graph?
- A. The blood flow changes direction at about 0.25 s.
- B. The speed of blood flow begins to decrease at about 0.10 s.
- C. The acceleration of the blood is greatest in magnitude at about 0.25 s.
- D. The acceleration of the blood is greatest in magnitude at about 0.10 s.
Figure 2.56
Problem 77
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Cedar has been trying to get Liam's attention for weeks. He decides to make a paper airplane to hit Liam in the back of his head (and grab his attention). If the paper airplane flies 2.64 m [W 26˚ N] and then is caught by the wind, which causes it to travel 3.21 m [S 12˚ E]. What is the paper airplane's total displacement? (please hand-write it and make it clear)
11. A person standing over an atrium 23.5 m below them and tosses a baseball straight up at22.1 m/s. The ball lands on the glass of the atrium ceiling and cracks it. Ten seconds later, theceiling cracks and the ball falls 11.1 m and lands on the floor of the atrium. a) What was the velocity of the baseball just before it hit the glass ceiling of theatrium?b) How long did it take for the ball to hit the atrium ceiling?c) How long does it take for the baseball to fall from the atrium ceiling and hit thefloor?
ar.C PH
8 7.2 Projectile Motion | School:
i the ercher launches the ams
+
IA
T The Tragic Events..
Submit Assignment
G Allan poe poems th..
Edgar Allan Poe Qu.
A Edgar Allan Poe, P..
G Graphic novel of ed.
Motion - 15056140 * O
ensions Help
Last edit was yesterday at 8:12 AM
BIUA
CD 田回▼ - 1三 m ▼=▼三EX
Arial
21
I 1 I 2 3 4 5 I I 6
1. If the archer launches the arrow with a speed of 10 m/s while kneeling 8 m from
the target, what launch angle is required for the arrow to hit the target? (Adjust the
Position slider to Kneeling, the Distance to Target slider to 8 m, and the Launch
Speed slider to 10 m/s. Then, adjust the Launch Angle slider until the arrow hits
the target after pressing play.)
Support I Schoology Blog | PRIVACY POLICY I Terms of Use
DELL
Chapter 2 Solutions
College Physics (10th Edition)
Ch. 2 - A jogger runs due east along a straight jogging...Ch. 2 - Give an example or two in which the magnitude of...Ch. 2 - Under what conditions is average velocity equal to...Ch. 2 - If an automobile is traveling north, can it have...Ch. 2 - True or false? (a) If an objects average speed is...Ch. 2 - Is it possible for an object to be accelerating...Ch. 2 - A wind-up toy car is released from rest. It...Ch. 2 - Can an object with constant acceleration reverse...Ch. 2 - If the graph of the position of an object as a...Ch. 2 - If the graph of the position of an object as a...
Ch. 2 - If the graph of the velocity of an object as a...Ch. 2 - Figure 2.31 shows graphs of the positions of three...Ch. 2 - Figure 2.32 shows graphs of the velocities of...Ch. 2 - Figure 2.33 shows the graph of an objects position...Ch. 2 - Figure 2.3 shows the graph of an objects velocity...Ch. 2 - Figure 2.35 shows the position x of an object as a...Ch. 2 - Figure 2.36 shows the velocity of an object Ux as...Ch. 2 - A ball is dropped from rest from the top of a...Ch. 2 - Which of the following statements about average...Ch. 2 - A ball is thrown directly upward with a velocity...Ch. 2 - Two objects start at the same place at the same...Ch. 2 - An object starts from rest and accelerates...Ch. 2 - If a car moving at 80 mi/h takes 400 ft to stop...Ch. 2 - Figure 2.38 shows the velocity of a jogger as a...Ch. 2 - A certain airport runway of length L allows planes...Ch. 2 - A ball rolls off a horizontal shelf a height h...Ch. 2 - A frog leaps vertically into the air and...Ch. 2 - A cat runs in a straight line. Figure 2.39 shows a...Ch. 2 - A wildebeest is running in a straight line, which...Ch. 2 - A bullet is dropped into a river from a very high...Ch. 2 - An ant is crawling along a straight wire, which we...Ch. 2 - || A person is walking briskly in a straight line,...Ch. 2 - A dog runs from points A to B to C in 3.0 s. (See...Ch. 2 - || BIO Figure 2.44 shows the position of a moving...Ch. 2 - || An object moves along the x axis. Figure 2.45...Ch. 2 - || A boulder starting from rest rolls down a hill...Ch. 2 - || Each graph in Figure 2.47 shows the position of...Ch. 2 - Family trip. You and your family take a trip to...Ch. 2 - Hypersonic scramjet. On March 27, 2004, the United...Ch. 2 - Plate tectonics. The earths crust is broken up...Ch. 2 - A runner covers one lap of a circular track 40.0 m...Ch. 2 - At room temperature, sound travels at a speed of...Ch. 2 - BIO Ouch! Nerve impulses travel at different...Ch. 2 - While riding on a bus traveling down the highway,...Ch. 2 - || A mouse travels along a straight line; its...Ch. 2 - || The freeway blues! When you normally drive the...Ch. 2 - ||Two runners start simultaneously at opposite...Ch. 2 - || A physics professor leaves her house and walks...Ch. 2 - || A test car travels in a straight line along the...Ch. 2 - || Figure 2.50 shows the position x of a crawling...Ch. 2 - || The graph in Figure 2.51 shows the velocity of...Ch. 2 - || DATA A test driver at Incredible Motors, Inc.,...Ch. 2 - (a) The pilot of a jet fighter will black out at...Ch. 2 - || For each graph of velocity as a function of...Ch. 2 - || A little cat, Bella, walks along a straight...Ch. 2 - The driver of a car traveling on the highway...Ch. 2 - BIO Animal motion. Cheetahs, the fastest of the...Ch. 2 - || BIO A cat drops from a shelf 4.0 ft above the...Ch. 2 - || BIO Blackout? A jet fighter pilot wishes to...Ch. 2 - A car is traveling at 60 mi/h down a highway. (a)...Ch. 2 - BIO If a pilot accelerates at more than 4g, he...Ch. 2 - || BIO Air-bag injuries. During an auto accident,...Ch. 2 - Starting from rest, a boulder rolls down a hill...Ch. 2 - Faster than a speeding bullet! The Beretta Model...Ch. 2 - Electric drag racer. An electric drag racer is...Ch. 2 - The reaction time of the average automobile driver...Ch. 2 - According to recent typical test data, a Ford...Ch. 2 - A car sitting at a red light begins to accelerate...Ch. 2 - If the radius of a circle of area A and...Ch. 2 - In the redesign of a machine, a metal cubical part...Ch. 2 - You have two cylindrical tanks. The tank with the...Ch. 2 - Prob. 42PCh. 2 - Two rockets having the same acceleration start...Ch. 2 - The drivers of two cars having equal speeds hit...Ch. 2 - Two bicyclists start a sprint from rest, each...Ch. 2 - (a) If a flea can jump straight up to a height of...Ch. 2 - A brick is released with no initial speed from the...Ch. 2 - Worlds tallest building. Suppose that you drop a...Ch. 2 - A tennis ball on Mars, where the acceleration due...Ch. 2 - Measuring g. One way to measure g on another...Ch. 2 - Thats a lot of hot air! A hot-air balloonist,...Ch. 2 - Astronauts on the moon. Astronauts on our moon...Ch. 2 - A student throws a water balloon vertically...Ch. 2 - A rock is thrown vertically upward with a speed of...Ch. 2 - BIO Physiological effects of large acceleration....Ch. 2 - Two stones are thrown vertically upward from the...Ch. 2 - Two coconuts fall freely from rest at the same...Ch. 2 - A Toyota Prius driving north at 65 mi/h and a VW...Ch. 2 - You are driving eastbound on the interstate at 70...Ch. 2 - A helicopter 8.50 m above the ground and...Ch. 2 - || A jetliner has a cruising air speed of 600 mi/h...Ch. 2 - || At the instant the traffic light turns green,...Ch. 2 - || A state trooper is traveling down the...Ch. 2 - Two rocks are thrown directly upward with the same...Ch. 2 - BIO Prevention of hip fractures. Falls resulting...Ch. 2 - || Egg drop. You are on the roof of the physics...Ch. 2 - || Galileos marbles. Galileo used marbles rolling...Ch. 2 - A large boulder is ejected vertically upward from...Ch. 2 - A car is traveling in the negative x direction at...Ch. 2 - Bio A healthy heart pumping at a rate of 72 beats...Ch. 2 - A car in the northbound lane s sitting at a red...Ch. 2 - A rocket blasts off vertically from rest on the...Ch. 2 - BIO An elite human sorinter reaches his top speed...Ch. 2 - || How high is the cliff? Suppose you are climbing...Ch. 2 - BIO Blood flow in the heart. The human circulatory...Ch. 2 - BIO Blood flow in the heart. The human circulatory...Ch. 2 - BIO Blood flow in the heart. The human circulatory...
Additional Science Textbook Solutions
Find more solutions based on key concepts
16. (II) A golf ball of mass 0.045 kg is hit off the lee at a speed of 38 m/s. The golf club was in contact wit...
Physics: Principles with Applications
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective
A house is at 20C on a winter night when the outside temperature is a steady 15C. The houses heat capacity is 6...
Essential University Physics (3rd Edition)
30. A 3000-rn-high mountain is located on the equator. How much faster does a climber on top of the mountain mo...
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
3. A car goes around a corner in a circular arc at constant speed. Draw a motion diagram including positions, v...
College Physics: A Strategic Approach (3rd Edition)
Choose the best answer to each of the following. Explain your reasoning. What is Jupiters Great Red Spot? (a) t...
Cosmic Perspective Fundamentals
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
- An object has an initial velocity v = 2.4i + 4.5j m/s. Over a period of time t = 2.9 s, its velocity becames v2 = 2.4i +35 m/s. The magnitude of the object's acceleration (in m/s?) is: a. 1.73 b. 0.52 с. 2.59 d. 3.07 e. 0.26arrow_forwardTwo friends are tossing balls from the main floor of the auditorium to the balcony. One person stands exactly 4.0 m above the other person, and both release and catch the balls at the same height above their feet. The balls are always caught on their way down. The boy on the main floor releases his ball with an initial velocity of 25 m/s [up]. With what velocity should the girl on the balcony throw her ball at the same moment, so that both balls will be caught by the other person at exactly the same timearrow_forwardAn object has an initial velocity v1 = 4.3î + -3.7jm/s. Over a | period of timet = 1.4 s, its velocity became vz = -2î + 0.5j m/s. The magnitude of the displacement of the object (in m) is. а. 0.83 b. 13.79 С. 2.65 d. 8.28 е. 2.76arrow_forward
- 1. A water pistol aimed horizontally projects a stream of water with an initial speed of 5.00 m/s2. a. How far does the water drop in moving 1.00 m horizontally? b. How far does it travel before dropping a vertical distance of 1.00 cm?arrow_forward3. Two ducks, Donald and Cassiopeia, are gliding gracefully toward each other along a pond, in a straight line. Donald is initially moving at y = 0.500 m/s, and begins accelerating at 0.100 m/s2 at t=0 s. Cassiopeia moves at a constant speed of v=0.700 m/s. If they are initially separated by 25.0 m, where will they collide? Take Donald's initial position as the origin. How long will it take for them to collide? 4. A car moves along a straight road. From the graph, which of the following could you conclude? a. The car is speeding up all the time. b. The car is slowing down all the time. c. The car speeds up at first, and then slows down. d. The car is moving at a constant velocity. position timearrow_forwardThe clark freeport zone and philippine international hot air balloon foundation incorporation organizers the 18th clark philippines hot air balloons Fiesta last February 21-24, 2013. During the event a bag drop from the hot air balloon reaches the ground in 20 seconds. Determine the height of the hot air balloon (a) if it is at rest in the air and (b) if it is ascending with a speed of 49 m/s when the bag is dropped. ANS. (a) 1.96x10³m (b) -9.8x10²marrow_forward
- 3) A particle is moving along the surface of a vertical cylinder. The motion is described by the relationships: r = A, 0 = 2nt and z = B sin(2nnt). In these equations A and B are constants and n is an integer. What is the magnitude of the velocity of the particle at an arbitrary time t? Take g = 9.81 m/s² when you need to use it.arrow_forward78. In 1998, NASA launched Deep Space 1 (DS-1), a spacecraft that successfully flew by the asteroid named 1992 KD (which orbits the sun millions of miles from the earth). The propulsion system of DS-1 worked by ejecting high-speed argon ions out the rear of the engine. The en- gine slowly increased the velocity of DS-1 by about +9.0 m/s per day. (a) How much time (in days) would it take to increase the velocity of DS-1 by +2700 m/s? (b) What was the acceleration of DS-1 (in m/s²)?arrow_forward2. A particle is moving along a horizontal line. The velocity (in cm/s) of the particle after t seconds is given by v(t) = tanh t + tanh? t – 1, where t >0. (a) Determine if the particle is speeding up or slowing down at time t = 0. (b) If the particle is initially located 1 cm to the left of the origin, find the position func- tion of the particle at any time t.arrow_forward
- Blood is accelerated from rest to a speed of 33.0 cm/s in a distance of 1.79 cm by the left ventricle of the heart. Determine the magnitude of the acceleration ? of the blood. ?= Determine the duration ? of the acceleration. ?=arrow_forward1. Mt Taal is one of the most active volcanoes in the Philippines and active volcanoes normally emit red-hot rocks and lava rather than smoke and ash. Believe a huge rock is emitted from the volcano with a speed of 30.0 m/s and at an angle 40 above the horizontal. The rock strikes the side of the volcano at an altitude 25.0 m lower than its starting point. (a) Calculate the time it takes the rock to follow this path. (b) What are the magnitude and direction of the rock's velocity at impact?arrow_forward1.A river has a steady speed of 0.500 m/s. A student swims upstream a distance of 1.00 km and swims back to the starting point. If the student can swim at a speed of 1.20 m/s in still water, how long does the trip take? ()arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Kinematics Part 3: Projectile Motion; Author: Professor Dave explains;https://www.youtube.com/watch?v=aY8z2qO44WA;License: Standard YouTube License, CC-BY