Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 15, Problem 26P
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To Explain: Whether the speed of the Mach
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Physics for Scientists and Engineers
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- (I) (a) How fast is an object moving on land if its speed at 24°C is Mach 0.33? (b) A high-flying jet cruising at 3000 km/h displays a Mach number of 3.1 on a screen. What is the speed of sound at that altitude?arrow_forwardIf a thunder clap is heard 5.5s later than the lighting flash observed from the earth then the distance of the flash will be (velocity of sound in air 330 m/s)arrow_forwardIn the upper atmosphere at altitudes where commercial airlines travel, we find extremely cold tempera-tures. What is the speed of sound (in metric units) for a temperature of -55 ◦ C? Calculate to one decimal.arrow_forward
- An arcratt at an altitude of 8km vwhere the temperature is 32 C". Find the mach number and dlassify as sonic, subsonic and supersonic when the speed of aircraft is () 30 m/sec (i) 300 m/sec (i) 1000 m/sec.arrow_forwardThe velocity of sound in air at sea level is above 1100 feet per second. If a man hears a clap of thunder 3 seconds after a lightning flash, how far away was the lightning?arrow_forwardOn a day when the speed of sound in air is 340 m/s, a lightning bolt is observed and the resultant thunderclap is heard 2 seconds afterwards. About how far away was the lightning bolt?arrow_forward
- Can someone please help me? :) thank you xoxo!arrow_forwardAn earthquake near the Kenai Peninsula, Alaska, creates asingle “tidal” wave (called a tsunami) that propagatessouthward across the Pacifi c Ocean. If the average oceandepth is 4 km and seawater density is 1025 kg/m3, estimatethe time of arrival of this tsunami in Hilo, Hawaii.arrow_forward(a) Seismographs measure the arrival times of earthquakes with a precision of 0.100 s. To get the distance to the epicenter of the quake, they compare the arrival times of S- and P-waves, which travel at different speeds. If S- and P-waves travel at 4.00 and 7.20 km/s, respectively, in the region considered, how precisely can the distance to the source of the earthquake be determined? (b) Seismic waves from underground detonations of nuclear bombs can be used to locate the test site and detect violations of test bans. Discuss whether your answer to (a) implies a serious limit to such detection. (Note also that the uncertainty is greater if there is an uncertainty in the propagation speeds of the S- and P-waves.)arrow_forward
- when you stand 55 meteters from a wall and clap, the sound returns ti you in 0.32 seconds. what is the speed of sound?arrow_forward(a) Seismographs measure the arrival times of earthquakes with a precision of 0.100 s. To get the distance to the epicenter of the quake, geologists compare the arrival times of S- and P-waves, which travel at different speeds. If S- and P-waves travel at 4.00 and 7.20 km/s, respectively, in the region considered, how precisely can the distance to the source of the earthquake be determined? (b) Seismic waves from underground detonations of nuclear bombs can be used to locate the test site and detect violations of test bans. Discuss whether your answer to (a) implies a serious limit to such detection. (Note also that the uncertainty is greater if there is an uncertainty in the propagation speeds of the S- and P-waves.)arrow_forwardThe speed of sound in air is 332m/s at 0 degree C. At what temperature will the velocity become 1/2 times that at 0 degree C?arrow_forward
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