Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 2, Problem 57P
To determine
The speed of the submarine as it moves inside the water.
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Chapter 2 Solutions
Physics for Scientists and Engineers
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- During a thunderstorm, a frightened child is soothed by learning to estimate the distance to a lightning strike by counting the time between seeing the lightning and hearing the thunder (Fig. P2.25). The speed vs of sound in air depends on the air temperature, but assume the value is 343 m/s. The speed of light c is 3.00 108 m/s. a. A child sees the lightning and then counts to eight slowly before hearing the thunder. Assume the light travel time is negligible. Estimate the distance to the lightning strike. b. Using your estimate in part (a), find the light travel time. Is it fair to neglect the light travel time? c. Think about how time was measured in this problem. Is it fair to neglect the difference between the speed of sound in cold air (vs at 0C = 331.4 m/s) and the speed of sound in very warm air (vs at 40C = 355.4 m/s)?arrow_forwardA bat flying at 4.65 m/s is chasing an insect flying in the same direction. The bat emits a 39.9-kHz chirp and receives back an echo at 40.6 kHz. (Take the speed of sound in air to be v = 343 m/s.) (a) What is the speed of the insect? m/s(b) Will the bat be able to catch the insect? YesNo Explain.arrow_forwardA chimpanzee is standing not too far from a tall cliff. He lets out a loud bark and is startled to hear an echo from the cliff 0.830 seconds later. How far away is the cliff? Take the speed of sound to be 331 m/s.arrow_forward
- There was an accident, and NASA engineers are trying to sort out where two of their Mars Rovers, Tango and Foxtrot, have landed. The engineers know that landing site A is much hotter than landing site B. Unfortunately, the only working sensors on Tango and Foxtrot measure the speed of sound. If Tango measures the speed of sound at its landing site as 240 m/s, while Foxtrot measures speed of sound as 258 m/s at its landing site, where has each rover landed?arrow_forwardThere was an accident and NASA engineers are trying to sort out where two of their Mars Rovers (named 'Tango' and 'Foxtrot') have landed. The engineers know that landing site A is much hotter than landing site B. Unfortunately, the only working sensors on Tango and Foxtrot measure the speed of sound. If Tango measures the speed of sound at its landing site as 240 m/s, while Foxtrot measures speed of sound as 258 m/s at its landing site, where has each rover landed? Tango landed at site A while Foxtrot landed at site B. Tango landed at site B while Foxtrot landed at site A. Both Tango and Foxtrot landed at site A. O Both Tango and Foxtrot landed at site B.arrow_forwardA stone is dropped from the top of a cliff. The splash it makes when striking the water below is heard 2.7 s later. Considering the speed of sound in air at 20 °C to be 343 m s-¹ and considering the gravitational acceleration to be 9.80 m.s-², How high is the cliff?arrow_forward
- Dolphins use sonar echo to detect small objects more than 200.0 m from them. If sound travels through the water at 1470 m/s, how long will it be between the time the dolphin makes a sound and hears its echo if the object is 200.0 m away?arrow_forwardThe Cubs are putting on a fireworks show at Wrigley Field after the game on a brisk autumn evening when the temperature is 12 °C (54 °F). After the flash of an explosion, it takes spectators 0.600 s to hear the bang. How far away was the explosion? The speed of sound at 21 °C is 344 m/s.arrow_forwardSuppose you hear a clap of thunder 16.2 seconds after seeing the associated lightning stroke. The speed of the light is air is 300000000 m/s. How far are you from the lightning strike?arrow_forward
- If you shout across a canyon and hear the echo 0.80 s later, how wide is the canyon? Use the speed of sound as 340 m/s.arrow_forwardThis is possibly a different atmosphere from ours. In any case, the speed of sound is computer-generated, and is 454 m/s this time. Light travels for us instantaneously. You see a lightning flash, and 7.6 seconds later, you hear the thunderbolt. How far away was the lightning (in meters)?arrow_forwardA spherical vase of 12 cm in diameter has an 8 cm long neck connected to hit. The neck has a diameter of 4 cm. What is the resonant frequency of this vase in room temperature air?arrow_forward
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