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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.
2.28 kg of water are changed from ice at 0degc into liquid water at 0degc. the latent heat of fusion for water is lf
A loaded penguin sled with weight W rests on aplane inclined at angle θ to thehorizontal (Fig. 6-28). Between the sled and the plane, the coefficient of static frictionis µs, and the coefficient ofkinetic frictionis µk.
In the days of horse-drawn wagons, iron tires used to be placed on wooden wagon wheels by heating the iron rims, what diameter will the tire have when it is heated to 680 oC
An 18.00 g rifle bullet travelling 250 m/s buries itself in a 3.6 kg pendulum hanging on a 2.8 m long string, which makes the pendulum swing upward in an arc. Determine the horizontal component of the pendulum's displacement.
A farsighted man uses eyeglasses with a refractive power of 3.57 diopters. Wearing the glasses 0.026 m from his eyes, What is the correct contact lens prescription
A river flows due east at 1.34 m/s. What is the velocity of the boat as viewed by an observer on the shore
A boat floating in fresh water displaces water weighing 33.0 kN. What is the weight of the water that this boat displaces
A copper pot with a mass of 0.505 contains 0.175 of water, and both are at a temperature of 21.0. Find the final temperature of the system
A dentist wants a small mirror that, when 3.00 cm from a tooth, will produce a 4.5X upright image. What must its radius of curvature be
Dizziness. Our balance is maintained, at least in part, by the endolymph fluid in the inner ear. Spinning displaces this fluid, causing dizziness, What is the radical acceleration (in m/s^2) of the endolymph fluid
Some simple elemental superconductors (called type I) are perfect diamagnets, meaning that their internal magnetic field exactly cancels the applied field. What is the susceptibility of such superconductors
A ball is launched directly upward from ground level with an initial speed of 20 m/s. (Air resistance is negligible.) What is the greatest height reached by the ball
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