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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

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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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
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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