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an observatory has an 8-inch celestron telescopea estimate the diffraction limit of this telescopeb estimate the
an asteroid is seen in opposition from earth once every 1000 daysa what is the sidereal orbital period of the asteroidb
an air mass has a temperature of 68f and 970hpa with a mixing ratio of 5 gkg without any condensation or mixing the air
assume a planet is a uniform sphere of radius r that somehow has a narrow radial tunnel through its center also assume
a projectile is shot directly away from earths surface neglect the rotation of the earth what multiple of earths radius
a microscope with a magnification of 1000 using a converging lens with a focal distance of 15 cm for the objective the
moon effect some people believe that the moon controls their activities if the moon moves from being directly on the
a 0470-kg glider attached to the end of an ideal spring with force constant k 500 nm undergoes shm with an amplitude
a square loop length along one side 20 cm rotates in a constant magnetic field which has a magnitude of 20 t at an
a wedding ring of diameter 17 cm is tossed into the air and given a spin resulting in an angular velocity of 12
1 an electromagnetic velocity filter sometimes called a wien filter is used in a variety of experiments and other
if an object on a horizontal frictionless surface is attached to a spring displaced and then released it will oscillate
the current is increasing at a rate of32as in an rl circuit withr400ohmsandl360mh what is the total potential
two conductors made of the same material are connected across the same potential difference conductor a has twice the
a disk of radius r and mass m 10 g is rotating freely about a fixed axis through its center with angular velocity w
suppose you are climbing up stairs gaining 10 meters of height per minute in order to do that your body has to do some
a block of mass m 20 kg attached to a spring with spring constant k on a frictionless surface the block is pushed to
a cube of wood having an edge dimension of 203 cm and a density of 647 kgm3 floats on watera what is the distance from
a carbon steel piano wire 14 m long with a cross-sectional area of 2 times 106 m2 and mass 01 kg is stretched 23
air conditioning on a university campus is provided by chilled water 10oc pumped through a main supply pipe the pipe
the maximum acceleration of a fast freight elevator is 45 ms2 the maximum load of the elevator is 6651 kg and the
an astronaut weighs 152 n on the surface of the moon if the same astronaut orbits the moon at an altitude equal to the
a liquid hydrogen target of the thickness of 1cm and density of 0071 gcm3 is bombarded with a rare isotope beam of 60ca
compute the coulomb repulsion energy between two nuclei of 235u 137cs and 96zr that just touch at their surfaces b
an electric current of 1 a flows through a 20 resistor which is kept at a constant temperature of 10deg c by flowing