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Ambulance siren emits a frequency of 500 Hz moving at a speed of 20 m / s to walk along the highway. If the propagation of sound in air 330 Hz and wind speed of 5 m / s direction of movement of ambulances. Determine frequency heard by an observer sitting on the edge of the road when the ambulance moves away from the observer!
The antenna for an AM radio station is a 69.5-m-high tower whose height is equal to one-quarter the wavelength of the broadcast signal.
Two blocks are connected by a light weight, flexible cord that passes over a frictionless pulley. if m1 is 3.7 kg and m2 is 9.0kg, and block 2 is initially at rest 130 cm above the floor, howlong does it take block 2 to reach the floor? Please mak..
A particle of mass 3 kilogram is attached to a spring with a force constant of 300 N/m. It is oscillating on a horizontal frictionless surface with amplitude of 2.00 m. Determine how does the period change
A proton moving with a speed of 4.00 · 105 m/s in the positive y-direction enters a uniform magnetic field of 0.400 T pointing in the positive x-direction
Determine the magnitude of the acceleration of the spacecraft.
Two equal "carts" are on an air track. The first slides in at a velocity of +9 meter per second and hits the second which is originally at rest. obtain what is the velocity of the first
In a single-slit diffraction pattern on a flat screen, the central bright fringe is 0.9 cm wide when the slit width is 4.60*10 -5 m. When the slit is replaced with a second slit, the wavelength of the light and the distance to the screen remaining ..
A stream of water strikes a stationary turbine blade horizontally,as the drawing illustrates. The incident water stream has avelocity of +18.0 m/s, while the exiting water stream has avelocity of -18.0 m/s.
A photon whose energy is 1.3 x 10^-14 J is scattered off an electron at an angle of 50 degrees
The average density of a fish can be found by first weighing it in air and then finding the scale reading for the fish completely immersed in water, what is the average density of the fish
what is the magnitude of magnetic force per unit length on a wire carrying a current of 8 a and making an angle of
q1. the potential at location a is 419 v. a positively charged particle is released there from rest and arrives at
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