were f-lap? travels at a speed of about 344 m/s sou in air. You see a distant flash of lightning and hear the thunder arrive 7.5 s later. How many miles away was the lightning strike? (Assume the light takes essentially no time to reach you.) 13. I BIO Ouch! Nerve impulses travel at different speeds, depend- ing on the type of fiber through which they move. The impulses for touch travel at 76.2 m/s, while those registering pain move at 0.610 m/s. If a person stubs his toe, find (a) the time for each type of impulse to reach his brain, and (b) the time de lay between the pain and touch impulses. Assume that his brain is 1.85 m from his toe and that the impulses travel directly from toe to brain. 12. 1At rom Fig 2.3 21. 14. I While riding on a bus traveling down the highway, you notice that it takes 2 min to travel from one roadside mile marker to the next (a) What is your speed in mi /h? (b) How long does it take the bus to travel 100 yds? 15. Il A mouse travels along from the origin at any time t is given by the equation x = straight line; its distance x а -1 )t - (2.5 cm s. Find the average velocity of the 2 S (8.5 cm s mouse in the interval from t = 0 tot = 1.0 s and in the interval 2 11 4.0 s 0 to t from t 16. Il The freeway blues! When you normally drive the freeway between Sacramento and San Francisco at an average speed of 105 km/h (65 mi/h), the trip takes 1.0 h and 20 min. On a Friday afternoon, however, heavy traffic slows you down to an average of 70 km/h (43 mi/h) for the same distance. How much longer does the trip take on Friday than on the other days? 17. Il Two runners start simultaneously at opposite ends of a 200.0 m frack and run toward each other. Runner A runs at a steady 8.0 m/s and runner B runs at a constant 7.0 m/s. When and where will these runners meet? 2.2 Instantaneous Velocity 18. Il A physics professor leaves her house and walks along the sidewalk toward campus. After 5 min, she realizes that it is raining and she returns home. The distance from her hourn x(m) IV III 400 300 200
were f-lap? travels at a speed of about 344 m/s sou in air. You see a distant flash of lightning and hear the thunder arrive 7.5 s later. How many miles away was the lightning strike? (Assume the light takes essentially no time to reach you.) 13. I BIO Ouch! Nerve impulses travel at different speeds, depend- ing on the type of fiber through which they move. The impulses for touch travel at 76.2 m/s, while those registering pain move at 0.610 m/s. If a person stubs his toe, find (a) the time for each type of impulse to reach his brain, and (b) the time de lay between the pain and touch impulses. Assume that his brain is 1.85 m from his toe and that the impulses travel directly from toe to brain. 12. 1At rom Fig 2.3 21. 14. I While riding on a bus traveling down the highway, you notice that it takes 2 min to travel from one roadside mile marker to the next (a) What is your speed in mi /h? (b) How long does it take the bus to travel 100 yds? 15. Il A mouse travels along from the origin at any time t is given by the equation x = straight line; its distance x а -1 )t - (2.5 cm s. Find the average velocity of the 2 S (8.5 cm s mouse in the interval from t = 0 tot = 1.0 s and in the interval 2 11 4.0 s 0 to t from t 16. Il The freeway blues! When you normally drive the freeway between Sacramento and San Francisco at an average speed of 105 km/h (65 mi/h), the trip takes 1.0 h and 20 min. On a Friday afternoon, however, heavy traffic slows you down to an average of 70 km/h (43 mi/h) for the same distance. How much longer does the trip take on Friday than on the other days? 17. Il Two runners start simultaneously at opposite ends of a 200.0 m frack and run toward each other. Runner A runs at a steady 8.0 m/s and runner B runs at a constant 7.0 m/s. When and where will these runners meet? 2.2 Instantaneous Velocity 18. Il A physics professor leaves her house and walks along the sidewalk toward campus. After 5 min, she realizes that it is raining and she returns home. The distance from her hourn x(m) IV III 400 300 200
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter17: Sound Waves
Section: Chapter Questions
Problem 17.67AP
Related questions
Question
Question number 17.
Transcribed Image Text:were
f-lap?
travels at a speed of about 344 m/s
sou
in air. You see a distant flash of lightning and hear the thunder
arrive 7.5 s later. How many miles away was the lightning strike?
(Assume the light takes essentially no time to reach you.)
13. I BIO Ouch! Nerve impulses travel at different speeds, depend-
ing on the type of fiber through which they move. The impulses
for touch travel at 76.2 m/s, while those registering pain move at
0.610 m/s. If a person stubs his toe, find (a) the time for each type
of impulse to reach his brain, and (b) the time de lay between the
pain and touch impulses. Assume that his brain is 1.85 m from his
toe and that the impulses travel directly from toe to brain.
12. 1At rom
Fig
2.3
21.
14. I While riding on a bus traveling down the highway, you notice that
it takes 2 min to travel from one roadside mile marker to the next
(a) What is your speed in mi /h? (b) How long does it take the
bus to travel 100 yds?
15. Il A mouse travels along
from the origin at any time t is given by the equation x =
straight line; its distance x
а
-1 )t - (2.5 cm s. Find the average velocity of the
2
S
(8.5 cm s
mouse in the interval from t = 0 tot = 1.0 s and in the interval
2
11
4.0 s
0 to t
from t
16. Il The freeway blues! When you normally drive the freeway between
Sacramento and San Francisco at an average speed of 105 km/h
(65 mi/h), the trip takes 1.0 h and 20 min. On a Friday afternoon,
however, heavy traffic slows you down to an average of 70 km/h
(43 mi/h) for the same distance. How much longer does the trip
take on Friday than on the other days?
17. Il Two runners start simultaneously at opposite ends of a 200.0 m
frack and run toward each other. Runner A runs at a steady 8.0 m/s
and runner B runs at a constant 7.0 m/s. When and where will these
runners meet?
2.2 Instantaneous Velocity
18. Il A physics professor leaves
her house and walks along the
sidewalk toward campus. After
5 min, she realizes that it is
raining and she returns home.
The distance from her hourn
x(m)
IV
III
400
300
200
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