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When at rest, two trains have sirens that emit a frequency of 300 Hertz. The trains travel toward one another and toward an observer stationed between them. One of the train's moves at 29.5 meter per second, and the observer hears a beat frequency of 2.7 beats per second. Compute what is the speed of the second train, which travels faster than 29.5 m/s?
_____________m/s
A physics professor demonstrates the Doppler Effect by tying a 550 Hz sound generator to a 1.0-m-long rope and whirling it around her head in a horizontal circle at 120 rpm. Suppose the room temperature is 20oC. What is the highest frequency heard wi..
The mass of the sled and its two riders in Figure 5.5 is 214 kg. Find the magnitude of the centripetal force that acts on the sled and its two riders during the turn with a radius of 30.0 m, if the speed is equal 34.0 m/s.
question1a jet plane lands with a velocity of 112 ms and can accelerate at an utmost rate of -5.50 ms2 as it comes to
A mass of 3kg, is sitting on a 34° incline and is connected by a massless string over a pulley in the shape of a hollow cylinder, estimate the acceleration of the system
A skier of mass 64 kg starts from rest at the top of an 18° slope points her skis straight down the slope and lets gravity pull her down the slope. The slope is 65 m long. Her speed at the bottom is 15 m/s.
Monochromatic light is incident on a grating that is 40 mm wide ruled 24,000 lines. The line is imaged at 34.0 degrees in the second-order spectrum. Discover the wave length of the incident light
An atom is ionized so that it has only one electron. When the electron drops from the n = 3 shell to the n = 1 shell, an X-ray of wavelength 67.44 pm is emitted. What is the atomic number
A sound generator simultaneously produces two different frequencies, 240 Hz and 360 Hz. What will be the frequency of the third tone
a cannon fires a cannon ball at 954.4 ms in a straight line that passes directly over an observers head. if the
An object is placed in front of a concave mirror with a 21.4-cm radius of curvature. At what distance is the object from the mirror
A series RLC circuit consists of a 96.0 ? resistor, a 0.200Hinductor, and a 43.0 ?F capacitor. It is attached to a120 V/60 Hz power line. What is the average power loss
a straight wire in a magnetic field experiences a force of 0.034 n when the current in the wire is 2.5 a. the current
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