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an ore sample weighs 175 rm n in air when the sampleis suspended by a light cord and totally immersed in water
the rms speed of an oxygen molecule o2 in a containerof oxygen gas is 700 ms what is the temperature of the
a tank whose bottom is a mirror is filled with water to adepth of 204 cm a small fish floats motionless 660 cm under
a force f sqrt 3 i 1j n actson a wheel whose rotation axis coincides with the z axis the forceis applied at the point
a solid ball of mass m and radius r starts from rest and rollswithout slipping down a hill its center of mass drops a
a 150 kg bucket of water is suspended by a very light rope wrappedaround a solid uniform cylinder 0300 m in diameter
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there are two stable isotopes of the element lithium one of them has three neutrons and the other has four all other
oil having a density of 931kgm3 floats on water a rectangular block of wood450 cm high and with a density of 960kgm3
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the original doppler effect expirament had a pair of sound sources- one on a moving train and one at rest on the train
when in orbit a communication satellite attracts the earth with aforce of 190 kn and the earth-satellite gravitational
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a centripetal force of 250n acts on a 1000kg satellite moving with a speed of 5000ms in a circular orbit around a
an arrow is shot 30 degrees above horizontal with an initialvelocity of 49 metersseconda what is the maximum height the
the construction of a flat rectangular roof27 m x 46 m allows it to withstand a maximum net outward forceof 20008 n the
a horizontal force of magnitude 310 npushes a block of mass 410 kg a distanceof 300 m across a floor where the
a small block sits on the top of a fixed frictionlesshemisphere of radius r 9 meters if the block is given ainitial
assume that the earth is a uniform sphere and that its path around the sun is circulara calculate the kinetic energy
a hollow sphere is rolling along a horizontal floor at 550 ms when it comes to a 310 degree incline how far up the
bob who is working on a glacier wants to experiment with heat andhas constructed a two part metal rod the left rod is
an alpha particle is a helium nucleus that consists of two protons bound with two neutrons an alpha particle moving
two vectors a and b are given by a5i 6j 7k and b3i - 8j 2k if these two vectors are drawn starting at the same point
a 413 kg silver ingot is taken from a furnace where itstemperature is 751 degrees c and placed on a very large block
the frequency of a pendulum is 39 percent less when onthe surface of mars than when on the earths surface use this