Inquiry into Physics
8th Edition
ISBN: 9781337515863
Author: Ostdiek
Publisher: Cengage
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Chapter 8, Problem 8C
To determine
For recording higher frequencies in the tape recorder, wider or narrower gap is capable to use.
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Chapter 8 Solutions
Inquiry into Physics
Ch. 8 - Give two lessons that may be learned from the...Ch. 8 - Prob. 1AACh. 8 - Prob. 2AACh. 8 - Prob. 1PIPCh. 8 - Prob. 2PIPCh. 8 - Prob. 1MIOCh. 8 - Prob. 2MIOCh. 8 - Prob. 1QCh. 8 - Prob. 2QCh. 8 - (Indicates a review question, which means it...
Ch. 8 - Prob. 4QCh. 8 - (Indicates a review question, which means it...Ch. 8 - Prob. 6QCh. 8 - Prob. 7QCh. 8 - Prob. 8QCh. 8 - Prob. 9QCh. 8 - Prob. 10QCh. 8 - Prob. 11QCh. 8 - Prob. 12QCh. 8 - Prob. 13QCh. 8 - Prob. 14QCh. 8 - Prob. 15QCh. 8 - Prob. 16QCh. 8 - (Indicates a review question, which means it...Ch. 8 - (Indicates a review question, which means it...Ch. 8 - Prob. 19QCh. 8 - (Indicates a review question, which means it...Ch. 8 - Prob. 21QCh. 8 - Prob. 22QCh. 8 - (Indicates a review question, which means it...Ch. 8 - Prob. 24QCh. 8 - Prob. 25QCh. 8 - Prob. 26QCh. 8 - Prob. 27QCh. 8 - Prob. 28QCh. 8 - Prob. 29QCh. 8 - Prob. 30QCh. 8 - Prob. 31QCh. 8 - Prob. 32QCh. 8 - Prob. 33QCh. 8 - Prob. 34QCh. 8 - Prob. 35QCh. 8 - Prob. 36QCh. 8 - Prob. 37QCh. 8 - Prob. 38QCh. 8 - The charger cord used to recharge a cell phone...Ch. 8 - The generator at a power plant produces AC at...Ch. 8 - Compute the wavelength of the carrier wave of your...Ch. 8 - What is the wavelength of the 60,000-Hz radio wave...Ch. 8 - Compute the frequency of an EM wave with a...Ch. 8 - Prob. 6PCh. 8 - Determine the range of wavelengths in the UV...Ch. 8 - A piece of iron is heated with a torch to a...Ch. 8 - The filament of a light bulb goes from a...Ch. 8 - Prob. 10PCh. 8 - Prob. 11PCh. 8 - Prob. 12PCh. 8 - Prob. 13PCh. 8 - Prob. 14PCh. 8 - Prob. 15PCh. 8 - Prob. 16PCh. 8 - Earth’s magnetic field lines are not parallel to...Ch. 8 - A cyclometer is a device mounted on a bicycle that...Ch. 8 - Prob. 3CCh. 8 - The right-hand rule is a way to determine the...Ch. 8 - Prob. 5CCh. 8 - If a coil of wire is connected to a very sensitive...Ch. 8 - Prob. 7CCh. 8 - Prob. 8CCh. 8 - Prob. 9CCh. 8 - Prob. 10CCh. 8 - Prob. 11C
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- A device called an insolation meter is used to measure the intensity of sunlight. It has an area of 100 cm2 and registers 6.50 W. What is the intensity in W/m2?arrow_forwardAssume a 150 W loudspeaker broadcasts sound equally in all directions and produces sound with a level of 103 dB at a distance of 1.60 m from its center. (a) Find its sound power output. If a salesperson claims the speaker is rated at 150. W, he is referring to the maximum electrical power input to the speaker. (b) Find the efficiency of the speaker, that is, the fraction of input power that is converted into useful output power.arrow_forwardA piano tuner uses a 512-Hz tuning fork to tune a piano. He strikes the fork and hits a key on the piano and hears a beat frequency of 5 Hz. He tightens the string of the piano, and repeats the procedure. Once again he hears a beat frequency of 5 Hz. What happened?arrow_forward
- When poked by a spear, an operatic soprano lets out a 1200—Hz shriek. What is its wavelength if the speed of sound is 345 m/s?arrow_forwardAn 8hour exposure to a sound intensity level of 90.0 dB may cause hearing damage. What energy in joules falls on a 0.800cmdiameter eardrum so exposed?arrow_forwardLoudspeakers can produce intense sounds with surprisingly small energy input in spite of their low efficiencies. Calculate the power input needed to produce a 90.0-dB sound intensity level for a 12.0-cm-diameter speaker that has an efficiency of 1.00% . (This value is the sound intensity level right at the speaker.)arrow_forward
- If a microwave oven could be modified to merely tune the waves generated to be in the infrared range instead of using microwaves, how would this affect the uneven heating of the oven?arrow_forwardAssume a 150 W loudspeaker broadcasts sound equally in all directions and produces sound with a level of 103 dB at a distance of 1.60 m from its center. (a) Find its sound power output. If a salesperson claims the speaker is rated at 150. W, he is referring to the maximum electrical power input to the speaker. (b) Find the efficiency of the speaker, that is, the fraction of input power that is converted into useful output power.arrow_forwardIn Example 18.1, we investigated an oscillator at 1.3kHz driving two identical side-by-side speakers. We found that a listener at point O hears sound with maximum intensity, whereas a listener at point P hears a minimum. What is the intensity at P? (a) less than hut dose to the intensity at O (b) half the intensity at O (c) very low but not zero (d) zero (e) indeterminatearrow_forward
- A sound speaker is rated at a voltage of P=120.00 V and a current of I=10.00 A. Electrical power consumption is P=IV . To test the speaker, a signal of a sine wave is applied to the speaker. Assuming that the sound wave moves as a spherical wave and that all of the energy applied to the speaker is converted to sound energy, how far from the speaker is the intensity equal to 3.82 W/m2?arrow_forwardCalculate the first overtone in an ear canal, which resonates like a 2.40-cm-long tube closed at one end, by taking air temperature to be 37.0°C . Is the ear particularly sensitive to such a frequency? (The resonances of the ear canal are complicated by its nonuniform shape, which we shall ignore.)arrow_forwardRadio station WWVB, operated by the National Institute of Standards and Technology (NIST) from Fort Collins, Colorado, at a low frequency of 60 kHz, broadcasts a time synchronization signal whose range covers the entire continental US. The timing of the synchronization signal is controlled by a set of atomic clocks to an accuracy of 101012 s, and repeats every 1 minute. The signal is used for devices, such as radio-controlled watches, that automatically synchronize with it at preset local times. WWVB's long wavelength signal tends to propagate close to the ground. (a) Calculate the wavelength of the radio waves from WWVB. (b) Estimate the error that the travel time of the signal causes in synchronizing a radio controlled watch in Norfolk, Virginia, which is 1570 mi (2527 km) from Fort Collins, Colorado.arrow_forward
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