Calculate the wavelength of a 20-Hz wave. Calculate the wavelengths in air at 20° C for sounds in the maximum range of human hearing. The speed of sound in air is 343 m/s. Express your answer to two significant figures and include the appropriate units. Alow = 17 m Submit Previous Answers v Correct • Part B Calculate the wavelength of a 20,000-Hz wave. Express your answer to two significant figures and include the appropriate units. Ahigh = 1,7x10-2 m Submit Previous Answers Correct Part C What is the wavelength of a 27-MHz ultrasonic wave? Express your answer to two significant figures and include the appropriate units. dultrasonie =|1.7 • 10- m Submit Previous Answers Request Answer

Calculate the wavelength of a 20-Hz wave. Calculate the wavelengths in air at 20° C for sounds in the maximum range of human hearing. The speed of sound in air is 343 m/s. Express your answer to two significant figures and include the appropriate units. Alow = 17 m Submit Previous Answers v Correct • Part B Calculate the wavelength of a 20,000-Hz wave. Express your answer to two significant figures and include the appropriate units. Ahigh = 1,7x10-2 m Submit Previous Answers Correct Part C What is the wavelength of a 27-MHz ultrasonic wave? Express your answer to two significant figures and include the appropriate units. dultrasonie =|1.7 • 10- m Submit Previous Answers Request Answer

Horizons: Exploring the Universe (MindTap Course List)

14th Edition

ISBN:9781305960961

Author:Michael A. Seeds, Dana Backman

Publisher:Michael A. Seeds, Dana Backman

Chapter17: Mercury, Venus, And Mars

Section: Chapter Questions

Problem 1P: Imagine that a spacecraft has landed on Mercury and is transmitting radio signals to Earth at a...

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The highest frequency that we can hear is about 20 kHz (2x 10^4Hz). a) Calculate the wavelength (m) associated with this frequency for sound that travels at 345 m/s. b) How long is this in feet? (Roundanswers to the nearest tenth.
The human ear can respond to an extremely large range of intensities - the quietest sound the ear can hear is smaller than 10-20 times the threshold which causes damage after brief exposure. If you could measure distances over the same range with a single instrument, and the smallest distance you could measure was 1 mm, what would the largest be, in kilometers?Numeric : A numeric value is expected and not an expression.L = __________________________________________
You are on a boat in a fog and know there are cliffs ahead of you somewhere, but you cannot see them. You use your fog horn to send out a blast of sound (assume the temperature of the air is 20 oC) and the time it takes for the sound to return to you is 20.0 s. How far away are the cliffs (in metric units)? Hint: Be careful and think about the physics of the problem. You may want to make a sketch of the situation to help you determine the answer. Question 6 options: 1798 m 3444 m 3596 m 7192 m
You are on a boat in a fog and know there are cliffs ahead of you somewhere, but you cannot see them. You use your fog horn to send out a blast of sound (assume the temperature of the air is 20 oC) and the time it takes for the sound to return to you is 20.0 s. How far away are the cliffs (in metric units)? Hint: Be careful and think about the physics of the problem. You may want to make a sketch of the situation to help you determine the answer. 1798 m 3444 m 3596 m 7192 m
physical science, please simplify When employing active sonar, a submarine emits a sonar signal that has a frequency of 320 MHz (megahertz). The speed of sound waves in ocean water is 1531 m/s. What is the wavelength of this sound wave in microns?
Could you please explain how to do this? I really dont understand it and could use a clear explanation.
1. If a microwave of a radar system has wavelength of 1 mm, what is its frequency?2. A radio station transmits radio waves with a frequency of 1 200 KHz. What is the wavelength of the radio waves?3. A certain microwave has a wavelength of 0.032 meters. Calculate the frequency of this microwave.Please provide the solution, steps, and explanation. Thank you!
What is wrong with the following expressions? How can you correct them? (a) C=AB , (b) C=AB , (c) C=AB , (d) C=AB , (e) C+2A=B , (f) C=AB , (g) AB=AB , (h) C=2AB , (i) C=A/B , and (j) C=A/B .
Imagine that a spacecraft has landed on Mercury and is transmitting radio signals to Earth at a wavelength of 10.000 cm. When Mercury is seen from Earth in the evening sky, at its greatest angular distance east of the Sun, it is moving toward Earth at its maximum possible relative speed of 47.9 km/s. To what wavelength must you tune your radio telescope to detect the signals? (Hint: Use the Doppler formula in Reasoning with Numbers 6-2.)
Consider the equation s=s0+v0t+a0t2/2+j0t3/6+s0t4/24+ct5/120 , were s is a length and t is a time. What are the dimensions and SI units of (a) s0 , (b) v0 , (c) a0 , (d) j0 , (e) s0, and (f) c ?
Light travels at a speed of about 3 103 m/s. (a) How many miles down a pulse of light travel in a time interval of 0.1 s, which is about the blink of an eye? (b) Compare this distance to the diameter of Earth.
#1 plz show work so I can understand