Physics Fundamentals
2nd Edition
ISBN: 9780971313453
Author: Vincent P. Coletta
Publisher: PHYSICS CURRICULUM+INSTRUCT.INC.
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Chapter 1, Problem 9P
To determine
The average speed of blood.
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A boat travels downstream in 2/3 times as it goes going up stream. If the velocity of river’s current is 8 kph, determine the velocity of the boat in still water.
Blood flows through a major artery at1.0 m>s for 0.50 s, then at 0.60 m>s for another 0.50 s througha smaller artery. (a) Is the average speed of the blood 0.80 m>s,greater than 0.80 m>s, or less than 0.80 m>s? Explain. (b) Verifyyour answer to part (a) by calculating the average speed.
A car traveled at a rate of 50 km/hr for 8
minutes and then at 25 km/hr for 7 min
and finally at 20 km/hr for 2 min. What is
APPROXIMATELY the average speed for
?the complete trip of the car in (m/sec)
10.71 O
13.74 O
non of them O
12.88 O
Chapter 1 Solutions
Physics Fundamentals
Ch. 1 - Prob. 1QCh. 1 - Prob. 2QCh. 1 - Prob. 3QCh. 1 - Prob. 4QCh. 1 - Prob. 5QCh. 1 - Prob. 6QCh. 1 - Prob. 7QCh. 1 - Prob. 8QCh. 1 - Prob. 9QCh. 1 - Prob. 10Q
Ch. 1 - Prob. 11QCh. 1 - Prob. 12QCh. 1 - Prob. 13QCh. 1 - Prob. 1PCh. 1 - Prob. 2PCh. 1 - Prob. 3PCh. 1 - Prob. 4PCh. 1 - Prob. 5PCh. 1 - Prob. 6PCh. 1 - Prob. 7PCh. 1 - Prob. 8PCh. 1 - Prob. 9PCh. 1 - Prob. 10PCh. 1 - Prob. 11PCh. 1 - Prob. 12PCh. 1 - Prob. 13PCh. 1 - Prob. 14PCh. 1 - Prob. 15PCh. 1 - Prob. 16PCh. 1 - Prob. 17PCh. 1 - Prob. 18PCh. 1 - Prob. 19PCh. 1 - Prob. 20PCh. 1 - Prob. 21PCh. 1 - Prob. 22PCh. 1 - Prob. 23PCh. 1 - Prob. 24PCh. 1 - Prob. 25PCh. 1 - Prob. 26PCh. 1 - Prob. 27PCh. 1 - Prob. 28PCh. 1 - Prob. 29PCh. 1 - Prob. 30PCh. 1 - Prob. 31PCh. 1 - Prob. 32PCh. 1 - Prob. 33PCh. 1 - Prob. 34PCh. 1 - Prob. 35PCh. 1 - Prob. 36PCh. 1 - Prob. 37PCh. 1 - Prob. 38PCh. 1 - Prob. 39PCh. 1 - Prob. 40PCh. 1 - Prob. 41PCh. 1 - Prob. 42PCh. 1 - Prob. 43PCh. 1 - Prob. 44PCh. 1 - Prob. 45PCh. 1 - Prob. 46PCh. 1 - Prob. 47PCh. 1 - Prob. 48PCh. 1 - Prob. 49PCh. 1 - Prob. 50PCh. 1 - Prob. 51PCh. 1 - Prob. 52PCh. 1 - Prob. 53PCh. 1 - Prob. 54PCh. 1 - Prob. 55PCh. 1 - Prob. 56PCh. 1 - Prob. 57P
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- A bicyclist heads east at 19 k(m)/(h). After she has traveled 20.4 kilometers, another cyclist sets out in the same direction going 30 k(m)/(h). About how long will it take the second cyclist to catch up to the first cyclist?arrow_forwardBlood flows through a major artery at1.0 m/s over a distance of 0.50 m, then at 0.60 m/s for another0.50 m through a smaller artery. (a) Is the average speed of theblood 0.80 m/s, greater than 0.80 m/s, or less than 0.80 m/s?Explain. (b) Verify your answer to part (a) by calculating the average speed.arrow_forwardA nerve impulse travels along a myelinated neuron at 60.3 m/s. What is this speed in mi/h and What is this speed in cm/ms?arrow_forward
- A fluid has velocity components of u = ( yt) ft/s and v = (6x - t) ft/s where æ and y are in feet and t is in seconds. 16 Determine the magnitude of acceleration of a particle passing through the point (1.2 ft, 1 ft) if it arrives when t = 2 s.arrow_forwardIn a time of 2.86 h, a bird flies a distance of 83.7 km in the direction of 32.9 degrees East of North. Take north to be the positivity y direction and east to be the positive x direction. Express your answer in km/h. What is the y component of the birds average velocity?arrow_forwardA stone is dropped into a well. The sound of the splash is heard 5.16 s later. What is the depth of the well? (Take the speed of sound to be 343 m/s.)arrow_forward
- An airplane travels at 302 mi/h south for 4.00 h and then at 313 mi/h north for 702 miles. What is the average speed for the trip? Express answers in mi/h.arrow_forwardWhen the human body is at rest, the heart pumps 4.6 L of blood into the aorta every minute. During some exceptional exertion, such as playing sports, the amount of blood delivered to the aorta increases to 25 L every minute. If the area of the opening of the aorta is A = 0.81 cm2 What is the average velocity of blood as it enters the aorta in each of these cases?arrow_forwardYou are driving home from school steadily at 97 km/hkm/h for 160 kmkm. It then begins to rain and you slow to 61 km/hkm/h instantly. You arrive home after driving 4.5 hours. How far is your hometown from school? answer using two significant figures.arrow_forward
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