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A pair of speakers separated by 0.700m are driven by the same oscillator at a frequency if 690Hz. an observer originally positioned at one of the speakers begins to walk along a line perpendicular to the line joining the speakers. a) how far must the observer walk before reaching a relative maximum in intensity?b)how far will the observer be from the speaker when the first relative minimum is detected in the intensity?
Consider a frictionless track. A block of mass m1=10.0kg is released from A, at a height h=17.0m. It makes a head-on elastic collision at B with a block of mass m2=22.0kg that is initially at rest. Calculate the maximum height to which m1 rises after..
A 50 kg motionless student stands adorably on a frozen friction surface. What is the velocity (vector) of the adorable student after catching the shot
A highway curve of radius 440 is designed for traffic moving at a speed of 85.0 . What is the correct banking angle of the road
What is the length of the greatest and thinnest string that can be located under a tension of 860 without breaking .
when laser light of wavelenght 633.8nm passes through a diffraction grating, the first bright spot occurs at +- 18.6 degrees from the central maximum. At what angles do the third bright spots occur
A person can survive a feet-first impact at the speed of about 12 m/s (27 mi/h) on concrete; 15 m/s (34 mi/h) on soil; and 34 m/s (76 mi/h) on water. Why are there different values for different surfaces.
A solid uniform sphere and a uniform spherical shell, both having the same mass and radius, How fast is each sphere moving when it reaches the bottom of the hill
A runner is practicing on a circular track that is 535 m in circumference. From the point farthest to the east on the track, he starts off running due south and follows the track as it curves around toward the west.
The Space Shuttle travels at a speed of about 7.60 103 m/s. The blink of an astronaut's eye lasts about 110 ms. How many football fields (length = 91.4 m) does the Shuttle cover in the blink of an eye?
The current in a coil changes from 3.1 A to 1.9 A in 0.52 s. what is the self-inductance of the coil
A bat flying in a cave emits the sound pulse and receives its echo in 3.5 s. How far away is the cave wall.
When an electron moving through air has 5 MeV of energy, what is the ratio of the rates of energy loss by bremsstrahlung to that by collision? What is this ratio for lead?
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