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A scuba diver breathes air from a tank which has a pressure regulator that automatically adjusts the pressure of the inhaled air to the ambient pressure. If a diver 40 m below the surface of a deep lake fills his lungs to the full capacity of 6 liters and then rises quickly to the surface, to what volume will his lungs expand? Is such a rapid ascent advisable?
On planet A, the value of g is 11 m/s squared. If bluber weighs 732 N on planet A, how much would he weigh on earth
A transformer has input voltage and current of 10 V and 4 A respectively, and an output current of 0.8 A. how many turns are on the primary side
suppose you look through a 3.7 mm thick window comprised of a material whose refractive index is 1.57.a by what time
an underwater scuba diver sees the sun at an apparent angle of 47.0deg from the vertical. what is actual direction of
The planet Neptune has a satellite, Proteus, which travels in an orbit 1.180*10^8 m with a period of 1.12 days. Calculate the mass of Neptune
A bullet of mass 10g and speed 500 m/s is fiered into a door and gets embeded exactly at the centre of the door, Calculate the angular speed of the door just after the bullet embeds into it
The punter on a football team tries to kick a football so that it stays in the air for a long "hang time." what is the "hang time"
A proton is at the origin and an electron is at the point = 0.45 , = 0.31 . Find the electric force on the proton.
A bullet is fired horizontally at 800 m/s and strikes a target that is 160 m from the gun. If the marksman hears the sound of the impact on the target 0.67 s after he fires the gun, what is the speed of sound?
A quantity of air initially at 1 bar, 300K, undergoes two types of interactions: (a) it is brought to a final temparture of 500K adiabatically by a paddle-wheel work transfer, (b) the same temperature rise is brought about by heat transfer from a ..
A certain superconducting magnet in the form of a solenoid of length 0.70 m can generate a magnetic field of 10.0 T in its core when its coils carry a current of 50 A. The windings, made of a niobium-titanium alloy, must be cooled to 4.2 K. Find the ..
A car is accelerating while its horn is blowing. Just after the car passes a stationary person, the person hears a frequency of 978 Hz. 16.0 seconds later, the frequency heard by the person has decreased to 915 Hz.
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