1. The hearing range of a normal human ear is from 20 to 20000 Hz. If the speed of the sound in air is 340 m/s, what are the shortest and the longest wavelengths that the human ear can hear? 2. If the speed of wave in passing from medium A to medium B doubles while keeping the frequency constant, what happens to the wavelength? 3. Suppose that two-point charges, each with a charge of +1.00 Coulomb are separated by a distance of 1.00 meter. Determine the magnitude of the electrical force of repulsion between them.

1. The hearing range of a normal human ear is from 20 to 20000 Hz. If the speed of the sound in air is 340 m/s, what are the shortest and the longest wavelengths that the human ear can hear? 2. If the speed of wave in passing from medium A to medium B doubles while keeping the frequency constant, what happens to the wavelength? 3. Suppose that two-point charges, each with a charge of +1.00 Coulomb are separated by a distance of 1.00 meter. Determine the magnitude of the electrical force of repulsion between them.

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

Radio waves have the lowest frequency of all the electromagnetic waves. What does the frequency of radio waves say about the energy they carry? a.Radio waves carry high amounts of energy. b.Radio waves carry low amounts of energy. c.The energy carried in all Electromagnetic waves is the same
18. An electric field wave is described by the function E(x,t)-200 sin [(1.2875e7) x-(3.8599c15) t]. Calculate A) the wave number, B) the wavelength of this wave, and C) the velocity of this wave.
Electromagnetic waves (EM) are produced by A. A neutron accelerating from 50m/s to 90m/s B. An electron at rest. C. A proton at rest. D. An electron accelerating from 50m/s to 90m/s.
6- An insulating wall has a uniform surface load distribution of 8 PC / cm². What is the electric field strength (in kN / C units) above the wall 3cm?A) 1.5B) 2.8C) 4.5D) 5.2E) 3.6
1.
11.
6. What is the wavelength of a radio wave that has a frequency of 1.05 x 10^8 Hz? 1.999 m 3.997 m 2.855 m 0.857 m
A12
The smallest size of a car (wavelength) that can be detected by a radar is 2.5 m, the frequency (in MHz) of the radio waves used in the radar O a. 1.2 O b. 250 O c. 240 O d. 120