If the amplitude of a sine wave is 20Vpk, determine the instantaneous amplitude of the sine wave 10°, 150°into the cycle.
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Q: Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the high…
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- Antinodes are points with _____ amplitude.3.17 A wine glass can be shattered by establishing a standing wave vibration of high frequency around the rim of the glass. What is the frequency of such a sound (in kHz) if it establishes four nodes and four antinodes equally spaced around the 35.0 cm circumference of the rim of the glass and has a speed of 4,310 m/s? kHzThe intensity of radiative field (light source) is proportional to the square of the amplitude, so it decreases as I x as you move away from the source (this is why distant sources of R2 light are dimmer, and why sound volume decreases with distance from the source). Knowing the power P emitted by the point source, determine the intensity I at a distance R (remember I = ).
- An ocean wave has a length of12 m. A wave passes a fixedposition every 3 seconds. What isthe speed of the wave?(a) Expectant parents are thrilled to hear their unborn baby's heartbeat, revealed by an ultrasonic motion detector. Suppose the fetus's ventricular wall moves in simple harmonic motion with an amplitude of 1.70mm and a frequency of 130. per minute. Calculate the maximum linear speed of the heart wall. Suppose the motion detector in contact with the mother's abdomen produces sound at 1910000Hz, which travels through tissue at 1.50km/s. (b) Calculate the maximum frequency at which the sound would be perceived at the wall of the baby's heart. (c) Calculate the maximum frequency at which reflected sound is received by the motion detector. (By electronically "listening" for echoes at a frequency different from the broadcast frequency, the motion detector can produce beeps of audible sound in synchronization with the fetal heartbeat.)What`s frequency of 4th harmonic YAG:Nd3+ laser beam if it`s wavelength is 266.0 nm. Introduce answer in THz.
- A model aircraft with an engine producing vibrations of constant frequency of ?0 =500 ?? flies at a constant speed in horizontal circle of radius ? = 15 ? and completes one revolution in 5.0 ?. An observer situated in the plane of the circle and 50 ? from its centre monitors the frequency of sound from the engine. Using the speed of sound in air as 340 m/s, calculate the maximum and minimum observed frequencies.Some Hawaiian tsunamis For an interval of 45 minutes, the tsunamis near Hawaii caused by the Chilean earthquake of TT 1960 could be modeled by the equation y = 8 sin -t, 6 where y is in feet and t is in minutes. (a) Find the amplitude and period of the waves. (b) If the distance from one crest of the wave to the next was 21 kilometers, what was the velocity of the wave? (Tidal waves can have velocities of more than 700 km/hr in deep sea water.)Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the high temperature of 77 degrees occurs at 5 PM and the average temperature for the day is 65 degrees. Find the temperature, to the nearest degree, at 9 AM.