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An air bubble has a volume of 1.20 cm3 when it is released by a submarine 115 m below the surface of a lake. What is the volume of the bubble when it reaches the surface? Assume the temperature and the number of air molecules in the bubble remain constant during its ascent.cm3
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 69.40 diopters, How far (in meters) is the blackboard from her eyes
with an expert karate blow, you shatter a concrete block. consider your hand to have a mass of .7 kg, to be moving 5 m/s as its strikes the block, what impulse does the block exert on your hand
A pendulum is released from rest extended horizontally. The mass ofthe pendulum is 0.5 kg and the length of the string to the centerof mass is 75 cm. What is the speed of the pendulum bob as itpasses through the vertical. Use the work energy theor..
question1a softball of mass m 0.195 kg is pitched at a speed v0 27.3 ms. due to air resistance by time it reaches
A parallel-plate air capacitor has a capacitance of 400pF and a charge of magnitude 0.150\muC on each plate. What is the surface charge density on each plate
a television antenna is on the roof of the building. from a pt. on the ground 36.0 feet from the building the angle of
A wire carries a steady current of 2.20 A. A straight section of the wire is 0.750 m long, what is the magnetic force on the section of wire
Engineers redesign a car's wheels with the goal of decreasing eachwheel's angular momentum by 30% for a given linear speed for the car. Other design considerations require that the wheel diameter gofrom 38 {\rm cm} to 36 cm.If the old wheel had a ..
a molecule of dna deoxyribonucleic acid is 2.16 microm long. the ends of the molecule become singly ionized negative on
An 88.55 kg person is half way up a uniform ladder of length 3.135 m and mass 20.17 kg that is leaning against a wall. The angle between the ladder and the wall is ?. The coefficient of static friction between the ladder and the floor is 0.2561. Assu..
At sea level, at latitude where, the pendulum that takes 2.00s for a complete swing back and forth has a length of 0.993m. What is the value of g in m/s2 at the location where the length of such a pendulum is 0.970m.
A 700 N window washer is standing on a uniform scaffold supported by a vertical rope at each end. The scaffold weighs 200 N and is 3 m long. what is the force in each rope when washer stands 1 m from one end.
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