Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1. Two sources, A and B, emit a sound of a certain wavelength. The sound emitted from both sources is detected at a point away from the sources. The sound from source A is a distance d from the observation point, whereas the sound from source B has to travel a distance of 3λ. What is the largest value of the wavelength, in terms of d, for the maximum sound intensity to be detected at the observation point? If d = 10.0 m and the speed of sound is 340. m/s, what is the frequency of the emitted sound?
2. A train whistle emits a sound at a frequency f = 3000. Hz when stationary. You are standing near the tracks when the train goes by at a speed of v = 30.0 m/s. What is the magnitude of the change in the frequency (|Δf|) of the whistle as the train passes? (Assume that the speed of sound is v = 343 m/s.)
3. Two trains are traveling toward each other in still air at 25.0 m/s relative to the ground. One train is blowing a whistle at 300. Hz. Assume that the speed of sound is 343 m/s.
a) What frequency is heard by a man on the ground facing the whistle-blowing train?
b) What frequency is heard by a man on the other train?
One average force F1 has a magnitude that is three times as large as that of another force F2. Both forces produce the similar impulse. The average force F1 acts for a time interval of 1.77ms. for what time interval does the average force F2 act.
Tension is maintained in a string. The observed wave speed is24 m/s. When the suspended mass is 3.0 kg, What is the mass per unit length of the spring
two large parallel metal plates are uniformly and oppositely charged and the electric field between them is 7.6 times
A guitar string is 60 cmlong. The string has a mass of 1.8g and is under a tensionof 945N. Calculate the fundamental wavelength for this string
A soccer ball is kicked with an initial speed of 27m/s at an angle of 23 degrees with respect to the horizon. Find the maximum height reached by the ball
Neglect air resistance for the following. A soccer ball is kicked from the ground into the air. When the ball is at a height of 12.6 m, its velocity is (5.5 + 4.5) m/s. To what maximum height will the ball rise
A patient recovering from surgery has been given fluid intravenously. Find what is the mass flow rate
suppose that the engineer is at x = 0 when, at t = 0, he first spots the locomotive. Sketch x(t) curves for the locomotive and high-speed train for the cases in which a collision is just avoided and is not quite avoided. Do this on paper. Your ins..
an airplane flies 120 km at a constant altitude in a direction 30.0deg north of east. a wind is blowing that results in
A nuclear power plant generates 3000 MW of energy from nuclear reactions in reactor’s core. This energy is used to boil water and produce high pressure steam at 300 0C.
An electron moves at right angles to a magnetic field of 0.11 T. Find What is its speed if the force exerted on it is 7.6 10-15 N
The cosmic background radiation permeating the universe has the spectrum of a 2.7 K thermal radiator. What is the peak wavelength
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd