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Two speakers are placed side by side and driven by the same frequency of 500 Hz. If the distance from a person to one speaker is 5 meter and the person detects little or no sound, which of the following is a possible the distance from the person to the other speaker? (the sound speed is 340 m/s)
a) 8.4 m
b) 9.1 m
c) 8.1 m
d) 7.7 m
Determine the magnitude of the force between two point charges, Q1 = -2e located at (-3.60 cm, +4.10 cm) and Q2 = -8e located at (-0.60 cm, -8.60 cm). Continue working the problem above by calculating the direction of the force that Q1 exerts on Q..
Discover the magnitude of acceleration
question short sections of two very long parallel lines of charge are shown fixed in place and separated by l 10.0 cm.
What will be the lowest possible temperature to which very dry air at T=40 C can be cooled by evaporation. Consider p=1000mb and lv constant and equal to 2.4 x 106 J kg-1.
A 10.0 kgblock is dragged over a rough, horizontal surface by a 84.0 N force acting at 20.0° above thehorizontal. The block is displaced 6.00 m, Find the work done on the block by the normal force
The primary coil of an ideal transformer has 710 turns, and the secondary coil has 190 turns. find the output current of the secondary coil
a child pulls an 15 kg- wagon with a horizontal handle whose mass is 1.9 kg accelerating the wagon and handle at 2.5
A small object with a mass of 380 mg carries a charge of 35.0 nC and is suspended by a thread between the vertical plates of a parallel-plate capacitor. The plates are separated by 5.00 cm. If the thread makes an angle of 12.0° with the vertical, ..
a skateboarder shoots off a ramp with a velocity of 6.8 ms directed at an angle of 59deg above the horizontal. the end
puffy cumulus clouds which are made of water droplets occur at lower altitudes in the atmosphere. wispy cirrus clouds
In western movies, the hero sometimes detects an approaching trainby "listening" to the railroad tracks. If the tracks are made ofsteel, how many times faster does sound travel in the tracks thanin air?
a particle of mass 0.350 kg is attached to the 100 cm mark of a meter stick of mass 0.150 kg. the meter stick rotates
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