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a diverging lens with a focal length of -14 cm is placed 10 cm to the right of a converging lens with a focal length of
a weather vane initially at rest has a moment of inertia of 0125 kg middot m2 about its axis of rotation a 635 g piece
an open railroad car of mass 2404 kg is coasting with an initial speed of 18 ms on a frictionless horizontal track it
ceres the smallest identified dwarf planet in the solar system has a radius r 480 km and an acceleration due to
a rubber ball mass 027 kg is dropped from a height of 18 m onto the floor just after bouncing from the floor the ball
a car with a total mass of 192103 kg has wheels of radius 310 cm and moment of inertia 0830 kg middot m2 what is the
the weight of a star is usually balanced by two forces the gravitational force acting inward and the force created by
the distance between two successive maxima of a transverse wave is 120m eight crests or maxima pass a given point along
the speed of sound does not depend on the loudness or the frequency of sound the speed of sound in dry air 0 degree
a train traveling at a constant speed sounds the whistle as it approaches a crossing and continues to sound the whistle
a motorcyclist intends to perform a stunt in which he jumps a river 25 meters wide the motorcyclist must jump from a
a projectile is fired directly upward at such an initial velocity that it reaches half its height of 45 meters
as astronauts travel between the earth and the moon their mass remains constant but their weight diminishes assume the
an astronaut on a distant planet notices that it takes 8 seconds for an object to drop 32 meters beginning from a
a plane diving with constant speed at an angle of 490deg with the vertical releases a projectile at an altitude of 560
two narrow slits are used to produce a double-slit interference pattern with monochromatic light the slits are
two small stereo speakers are 3 m apart and act as a double slit interference experiment with sound waves if the
a closely wound coil has a radius of 630 cm and carries a current of 170 a how many turns must it have if at a point on
a rock is dropped in a large tank of benzene n15 and sinks to the bottom of the tank if the apparent depth of the rock
an ac generator with a frequency of 341 hz and an rms voltage of 120 v is connected to a 498-microf capacitora what is
suppose we have a rod of length l that has one end at 00 and lies along the x-axis and has a uniformly distributed
a converging lens has a focal length of f 43 cm for blue light and f 53 cm for red light an object is placed 140 cm
your eye diameter 25 cm is able to focus the image of a tree on your retina the tree is 24 m tall and 85 m away what is
1 reactance in general is not a function ofa frequencyb amplitudec phased resistivitye none of these2 in media the
each of the plates of a parallel plate capacitor has an area of 106cm2 and a plate separaton difference of 2mm suppose