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Question
Models for combining the electromagnetic, weak and strong nuclear interactions into a single basic force are __________.Answer
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Related questions
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A wave moves in a rope with a certain wavelength. A second wave is made to move in the same rope with twice the wavelength of the first wave. The frequency of the second wave is half the frequency of the first wave.
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NARRBEGIN: Force F stretches a ropeWhen a force F stretches a rope of mass per unit length r, the velocity of a wave in the rope is given byNARRENDYou have two ropes of the same length. The mass of the second rope is twice the mass of the first rope. The velocity of a wave in the second rope is times the velocity of a wave in the first rope.
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The speed of a wave is the same as the speed of the particles displaced by the wave.
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When the frequency of the source of a water wave increases, the speed of the waves traveling in the water increases.
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The wavelength of a wave divided by the frequency of the wave is the wave's speed.
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The number of cycles of a wave passing a point per unit time is the wave's period.
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The flash from a camera is an example of a continuous wave.
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The fourth harmonic of a complex tone has a frequency of 600 Hz. What is the frequency of the tone?
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A test tone used on a radio has a frequency of 1,000 Hz. What is the wavelength of this sound in air at normal room temperature? (The speed of sound is 344 meters per second.)
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Combining two sounds of equal intensity will give a sound level __________ higher than the sound level due to just one of them.
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A sound level of 80 dB has __________ times the amplitude of a 60 dB sound.
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The wave with the greatest speed is __________.
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In a plane wave, the wavefronts area. circularb. flatc. paralleld. perpendicular to the direction of propagation
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You are on an island where a huge explosion at a distance of 500 miles away can be heard. How long (in seconds) does it take the sound to travel to your location? Assume the temperature of the air is 20 oC.a. 1.4 s b. 5.6 s c. 2340.1 sd. 8955.4 s
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You listen to a live orchestra concert from a cheap seat far away, high up in the balcony. The music seems to be a little out of sync with the conductor's beat. Why?
a. The musicians are paying no attention to the conductor.
b. You are noticing a time lag due to the finite speed of sound.
c. The orchestra is not very good.
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Q:
The wavelength of ultrasound at 1 million Hz in air where the speed of sound is 340 m/s is
a. 0.00000034 m
b. 0.0000034 m
c. 0.00034 m
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e. 340,000,000 m
Q:
Which of the following is not one of the ways sound can be used?
a. to circulate the refrigerant in a refrigerator
b. to relay information to orbiting satellites
c. to form images of internal organs
d. to measure the air temperature aloft
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When two identical waves arrive at the same place in phase, there is
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b. destructive interference
c. diffraction
d. a Doppler effect
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If the temperature of the air rises, the frequency you hear isa. the same as f b. higher than f c. lower than fd. unrelated to f
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If you run towards the source, the frequency you hear isa. the same as f b. higher than f c. lower than fd. unrelated to f
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At temperatures below their boiling point, liquids gradually go into the gas phase through a process called
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