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Question
If a piece of wood is suspected to be several thousand years old, its true age can likely be determined through use of the isotope _________.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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You have two identical ropes stretched with the same force between two different sets of posts. The second rope is twice as long as the first rope. The velocity of a wave in the second rope is half the velocity of a wave in the first rope.
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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 wavelength of ultrasound at 1 million Hz in air where the speed of sound is 340 m/s is __________.
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As you move farther away from a source emitting a pure tone, the __________ of the sound you hear decreases.
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Increasing the speed of waves on a guitar string increases the _________ of the sound it produces.
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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 _________ times the frequency of the first wave.
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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
Q:
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.
d. The viola section is dragging.
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
d. 0.34 m
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
e. to make a bubble in water produce light
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When two identical waves arrive at the same place in phase, there is
a. constructive interference
b. destructive interference
c. diffraction
d. a Doppler effect
e. a shock wave
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Which of these waves will diffract the most when passing through a 20 cm wide opening in a barrier?a. a wave with a wavelength of 25 cmb. a wave with a wavelength of 2 cmc. a wave with a wavelength of 0.05 cmd. none of these waves will diffract at all
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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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The Eiffel tower in Paris is made primarily of iron, whose coefficient of linear expansion is about 10 x 10-6/C. On a cold day when the temperature is "10C the Eiffel tower is 300 meters tall. Its height on a hot day when the temperature is 40C is __________.
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The 1 kg block of ice melts into water. The amount of heat absorbed by the ice as it melts is __________.
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