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a rock is suspended by a light string when the rock is in air the tension in the string is 392 n when the rock is
a rectangular dam 30 m wide supports a body of water to a height of 25 ma neglecting atmospheric pressure find the
a plastic sphere floats in water with 500 percent of its volume submerged this same sphere floats in glycerin with 400
a pitot tube figure is used to determine the airspeed of an airplane it consists of an outer tube with a number of
a piece of wood is 0600 m long 0250 m wide and 0080 m thick its density is 600 kgm3 what volume of lead must be
a piece of unpainted porous wood barely floats in a container partly filled with water if the container is sealed and
a liquid flowing from a vertical pipe has a definite shape as it flows from the pipe to get the equation for this shape
a large aquarium of height 500 m is filled with fresh water to a depth of 200 m one wall of the aquarium consists of
a lake in the far north of the yukon is covered with a 175-m-thick layer of ice find the absolute pressure and the
a hydrometer is used to measure the specific gravity of liquids for a certain liquid a hydrometer reading indicates a
a hunk of aluminum is completely covered with a gold shell to form an ingot of weight 450 n when you suspend the ingot
a hollow sphere with an inner radius r and outer radius 2r is made of material of density rho0 and is floating in a
a hollow sphere of inner radius 80 cm and outer radius 90 cm floats half-submerged in a liquid of density 800 kgm3a
a helium-filled balloon rises until its density becomes the same as that of the surrounding air if a sealed submarine
a helium-filled balloon is tied to a 200-m-long 0050 0-kg uniform string the balloon is spherical with a radius of 0400
a helium balloon lifts a basket and cargo of total weight 2000 n under standard conditions in which the density of air
a glass ball of radius 200 cm sits at the bottom of a container of milk that has a density of 103 gcm3 the normal force
a cylindrical tank with a large diameter is filled with water to a depth d 030 m a hole of cross-sectional area a 65
a cubical block of wood 100cmon aside floats at the interface between oil and water with its lower surface 150 cm below
a cubical block of density pb and with sides of length l floats in a liquid of greater density pla what fraction of the
a cube of wood having an edge dimension of 200 cm and a density of 650 kgm3 floats on watera what is the distance from
a cube of ice whose edges measure 200 mm is floating in a glass of ice-cold water with one of its faces parallel to the
a crane lifts the 18000-kg steel hull of a ship out of the water determinea the tension in the cranes cable when the
a copper cu weight is placed on top of a 050-kg block of wood density 060 x 103 kgm3 floating in water as mass of the
a closed container is partially filled with water initially the air above the water is at atmospheric pressure 101 x 11