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If a scuba diver descends too quickly into the sea, the internal pressure on each eardrum remains at atmospheric pressure while the external pressure increases due to the increased water depth. At sufficient depths, the difference among the external and internal pressures can rupture an eardrum. Eardrums can rupture when the pressure dissimilarity is as little as 35 kPa. What is the depth at which this pressure dissimilarity could occur? The density of sea water is 1025 kg/m3.
in proton-beam therapy a high-energy beam of protons is fired at a tumor. the protons come to rest in the tumor
What is the net force experienced by testcharge q due to the presence of a spherical shellwith a charge Q and radius R ifthe test charge is placed at a distance x from thecenter of the sphere?
For research purposes a sonic buoy is tethered to the ocean floor and emits an infrasonic pulse of sound. The period of this sound is 73.1 ms. Determine the wavelength of the sound
a tiny ball mass 0.013 kg carries a charge of -16 acircmicroc. what electric field magnitude and direction is needed
A block of weight wt1 = 409 N sits on a frictionless table of mass 118 kg. The block is connected via frictionless pulley to a hanging block with weight wt2 = 172 N. FIND the tension in the rope connecting the two masses
During a long airport layover, a physicist father and his 8-year-old daughter try a game that involves a moving walkway. With what speed was the girl walking
What is the smallest thickness of a soap film (n = 1.33) that would appear black if illuminated with 450 -nm light? suppose there is air on both sides of the soap film.
An 8 g bullet leaves a gun at 700 m/s.? what is the maximum height that this bullet could reach
A 4.4kg ball with a velocity of 5.0m/s in the+x-direction collides head-on elastically with a stationary 2.5kg ball. What is the speed of the second ball after the collision
The maximum acceleration of a fast freight elevator is 4.5 m/s2. The maximum load of the elevator is 6,651 kg, and the elevator has a mass of 466 kg. If a steel cable is to be used suspend the elevator, what should the minimum diameter be? The elasti..
A laser that produces a spot of light that is 1.20 mm in diameter is shone perpendicularly on the center of a thin, what is the power of the laser
A converging lens and a diverging lens, separated by a distance of 20.5 cm, are used in combination. What is the focal length of the diverging lens
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