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An ambulance is generating a siren sound at a frequency of 2,400 Hz. The velocity of sound is 345.0 m/s. If the observer is traveling at a velocity of 24.00 m/s away from the stationary ambulance, then what is the frequency of the siren perceived by the observer?
Please explain in detail and step by step a 1.0kg block is held at rest against a spring with a force constant k = 740N/m. Find d such that the block's speed after crossing the rough patch is 2.4m/s
If the mercury in this barometer is replaced with water, to what height does the column of water rise
Two cars start from rest at a red stop light, When the light turns green, both cars accelerate forward, finally catching the blue car just as the blue car comes to a stop, How fast is the blue car going 9 seconds after it starts
A heat engine is composed of of a monatomic ideal gas which runs in the following cycle, What is the efficiency of this heat engine and What is the temperature at point B
What is the direction of the object's acceleration after it is free. What is the magnitude of the objects acceleration.
You are standing at x=9.0km Lightning bolt 1 at x=0km and lightning bolt 2 at x=12.0km Both flashes reach your eye at the same time. what is the time difference between the two flashes
question1a bicycle wheel is rotating at 43 rpm while the cyclist begins to pedal harder giving the wheel a constant
A express train travels along a straight line between two stations, A and D. Stations B and C are spaced evenly along the line between A and D. The engineer leaves A and accelerates at a constant rate until he passes station B
A 890-Hzsounds travels through pure hydrogen. The wavelength of the sound is measured to be 1.44 m, What is the speed of sound in hydrogen
One morning in New York City at 9:AM, Larry looks south and sees the moon is due south. Suppose Curly were to look at the Earth again 7 days later. What would the apparent shape of the Earth be
A piece of wood is 6.00 m long, 0.260 m wide and 0.060 m thick. Its density is 600kg/m cubed. What volume of iron ( P iron = 7.8 x 10 cubed kg/m cubed) must be fastened underneath the wood to sink it so that the top surface of the wood is just even w..
In a certain RL time constant circuit, it takes 135 msec for the current to reach maximum after the switch is closed.
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