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A source of sound waves of frequency 1.2 kHz is traveling during the air at 0.25times the speed of sound.
a) What is the frequency of the sound received by a stationary observer if the source moves toward her?
b) Currently, the source moves away from the stationary observer. What is the frequency of the sound received in this case?
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an ion enters a mass spectrometer which has a .21 t field perpindicular to electric field of 1.5 kvm and selects a
An underwater scuba diver sees the Sun at an apparent angle of 28.0° from the vertical. What is actual direction of the Sun
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a dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.42 x 104 rads to an angular
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A charge of -1.0 µC is located at the origin, a second charge of 2.6 µC is located at x = 0, y = 0.1 m, Find the forces that act on each of the three charges
Concrete is pumped from a cement mixer to the place it is being laid, instead of being carried in wheelbarrows. Calculate the resistance of the hose
A baseball player stealing second base runs at 7.8 m/s. If he slides the last 3.6 m, slowing to a stop at the base, what's the coefficient of kinetic friction between player and ground
You have a special lightbulb with a very delicate wire filament. What is the largest root-mean-square current you can run through this bulb
A 550 N physics student stands on a bathroom scale in an elevator. As the elevator starts moving, the scale reads 450N. (a) Find the acceleration of the elevator. Find the mass of the worker.
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