Use a scientific calculator to answer this activity.protection when relaxing at the rifle range?2. If lime juice has a pH of 1.7, what is the concentration of hydrogen ions (in mol/L)in lime juice, to the nearest hundredth?

Given: The intensity of sound from gunshot is 2.5×1012I0.

Use a scientific calculator to answer this activity. 1. Considering that prolonged exposure to sounds above 85 decibels can cause hearing damage or loss, and considering that a gunshot from a 0.22 rimfire rifle has an intensity of about I= (2.5 x 1013)Io, should you follow the rules and wear ear protection when relaxing at the rifle range?

Use a scientific calculator to answer this activity. 1. Considering that prolonged exposure to sounds above 85 decibels can cause hearing damage or loss, and considering that a gunshot from a 0.22 rimfire rifle has an intensity of about I= (2.5 x 1013)Io, should you follow the rules and wear ear protection when relaxing at the rifle range?

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)...

See similar textbooks

Similar questions

Some caterpillars, when under attack by birds, emit high-pitched whistles by sharply forcing air through openings in their thorax. (Eigure 1) is an experimental graph of intensity versus frequency for a caterpillar whistle. Assume a sound speed of 340 m/s. Figure Intensity 0 10 20 30 40 50 < 1 of 1 -f(kHz) Correct Part B What is the length of the tube? Express your answer with the appropriate units. L- 0.0189 Submit m Previous Answers Request Answer ? X Incorrect; Try Again; 4 attempts remaining
In sound, pitch is measured in _____, and volume is measured in _____. a. nanometers (nm); decibels (dB) b. decibels (dB); nanometers (nm) c. decibels (dB); hertz (Hz) d. hertz (Hz); decibels (dB)
Item 11 Most of the galaxies in the universe are observed to be moving away from Earth. Suppose a particular galaxy emits orange light with a frequency of 5.000 × 10¹4 Hz. Part A If the galaxy is receding from Earth with a speed of 4125 km/s, what is the frequency of the light when it reaches Earth? Express your answer to four significant figures and include appropriate units. μA Value Submit Units Request Answer ?
A jogger hears a car alarm and decides to investigate. While running toward the car, she hears an alarm frequency of 872.10 Hz. After passing the car, she hears the alarm at a frequency of 850.10 Hz. If the speed of sound is 343 m/s. ¹) Calculate the speed of the jogger. (Express your answer to three significant figures.) Submit m S
Step 1: Write down the equation needed to solve for velocity Velocity = Wavelength x Frequency Step 2: Place the known measurements into the equation Step 3: Solve the equation. Carefully put the numbers into your calculator. Recheck your answers! It is very easy to hit the wrong button on your calculator. Use correct SI units-Answer Huge waves in the ocean, are studied by scientists and researchers. Ships have reported waves an height of 25 meters high! These waves are said to be about 25 meters long. Assuming that these waves travel at speeds of 6.5 m/s, determine their frequency.
.Negative decibels? Our discussion of decibels did not mention that they can be negative. On the Redmond, Washington campus of Microsoft is an anechoic chamber that, according to Guinness World Records, is the quietest place in the world. It measures –20.3 decibels. a. What is the relative intensity of a sound measuring –1 decibels? Round your answer to one decimal place. b. What is the relative intensity of a sound measuring –10 decibels? Round your answer to one decimal place. c. What is the relative intensity of Microsoft's anechoic chamber? Round your answer to three decimal places. d. Is it possible for the relative intensity to actually be zero?
3 rces The sound of normal breathing is not very loud, with an intensity of about 11 dB at a distance of 1 m away from the face of the breather. Note that in this problem sound intensity in decibels is denoted 3; intensity in W/m² is denoted I View Available Hint(s) distance Ddetect in meters. Ddetect = 3.16 m Submit Previous Answers ✓ Correct Part B In general, if a sound has intensity of 3 dB at 1 m from the source, at what distance de from the source would the decibel level decrease to 0 dB? Since the limit of hearing is 0 dB this would mean you could no longer hear it. Express the distance in terms of B. Be careful about your signs! View Available Hint(s) Submit IVE] ΑΣΦ do 3.55 3 Previous Answers X Incorrect; Try Again; 5 attempts remaining < Return to Assignment Provide Feedback P Pearson m Copyright © 2022 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us |
Please provide details about your resolution process. Please show complete, organized and correct work for each question. Questions without complete and clear work will earn no points. You’re welcome to use your textbook and notes, but no calculators. One way to tune a piano is to strike a tuning fork (which emits only one specific frequency), then immediately strike the piano key for the frequency being sounded by the fork, and listen for beats. If the frequency of an out-of-tune A4string is 420.0 Hz, and a tuner strikes an A4 tuning fork (frequency 440.0 Hz),a. …what beat frequency will the tuner hear?a) ????? = _____________________b. …and what frequency note will the tuner hear?b) ????? = _____________________
What is the intensity, in W/m2, of a sound source that has a level 9 dB higher than a source with intensity of 5x10-7 W/m2? Enter the answer including the units. Put your answer in standard scientific notation d.dd (round to two significant digits). Show your work on the scratch paper.
the spec swer? Explain. 29. W A sinusoidal sound wave moves through a mediu is described by the displacement wave function s(x, t) = 2.00 cos (15.7x – 8581) %3D t onds. Find (a) the amplitude, (b) the wavelength (c) the speed of this wave. (d) Determine the instant neous displacement from equilibrium of the elements cs the medium at the position x = 0.050 0 m at t = 3.00 (e) Determine the maximum speed of the element's oscil- latory motion. ms. solve part D E only
The hand moves the end of the Slinky up and down through 8 complete cycles in one second. The wave moves along the Slinky at a speed of 49 m/s. Find the distance between two adjacent crests on the wave. No need to include the unit. Write your answer in whole numbers.
A water wave traveling in a straight line on a lake is described by the equation y (x, t) (2.75 cm) cos (0.410 rad/cm x + 6.20 rad/st) where y is the displacement perpendicular to the undisturbed surface of the lake. = Part A How much time does it take for one complete wave pattern to go past a fisherman in a boat at anchor? Express your answer with the appropriate units. t = Submit Part B 8 = Value Part C Submit | MA What horizontal distance does the wave crest travel in that time? Express your answer with the appropriate units. k= Request Answer Value μA Submit What is the wave number? Request Answer IVE ΑΣΦΑ Units Request Answer ? Units ? ? rad/cm