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A leather ball of circumference 75.1 cm and mass 583 g is forced to the bottom of a swimming pool and then released. After initially accelerating upward, it rises at a constant velocity.
a) Calculate the buoyant force on the ball.
b) Calculate the drag force the ball experiences while it is moving upward at constant velocity.
How many rulings must a 4.22-cm-wide diffraction grating have to resolve the wavelengths 415.544, At what angle are the second order maxima found
Under the influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. compute the distance in which the snowmobile coasts to a halt
A 5cm radius sphere is filled with a uniform volume charge with charge density 2.3\times10-6C/m3, Calculate the electric flux out of the surface of the cube
A parallel-plate air-filled capacitor having area 44.0 cm2 and plate spacing 2.80 mm is charged to a potential difference of 620. V.
in an exciting game, a baseball player manages to slide safely into second base. the mass of the player is 80.9 kg, find the magnitude of the frictional force
The partial pressure of CO2, in the expired air is 25 mm Hg and in the alveolar air it is 39 mm Hg. For an expired volume of 550ml, calculate the dead space volume
a 0.346kg glider moves along a frictionless level air track tugged by a mass of 0.050kg suspended vertically over a pulley
A film of oil with refractive index 1.45 floats on water with refractive index of 1.33. Determine the thickness of the oil film
In an X-ray tube electrons strike a tungsten target (W or "wolfram") after being accelerated through a potential difference V0. Estimate the minimum value of V0 required to observe the Kalpha peak.
An undersea research chamber is spherical with an external diameter of 5.20 m. The mass of the chamber, when occupied, is 66400 kg. find the buoyant force on the chamber
Water at a pressure of 4.3 atm at street level flows into an office building at a speed of 0.6 m/s through a pipe 5 cm in diameter. What is the pressure in the top floor pipe
A 8.00-cm-long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field. How big is the pulling force
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