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when monochromatic light shines perpendicularly on a soap filmn 133 with air on each side the second smallestnonzero
some european trucks run on energy stored in a rotating flywheel with an electric motor getting the flywheel up to its
a molecule of dna deoxyribonucleic acid is 219 microm long the ends of the molecule becomesingly ionized -- negative on
a large spherical shell with a mass of 145 kg and radius of 15m isinitially spinning at a rate of 300 rpm a maintenance
a proposed space stationincludes living quarters in a circular ring 545 m in diameter atwhat angular speed should the
a bicycle has wheels with a diameter of 0570 m itaccelerates uniformly and the rate of rotation of its wheels increases
the flywheel of a steam engine begins to rotate from rest with a constant angular acceleration of 127rads2 it
two initially uncharged capacitors of capacitance c and2c are connected in series across a battery determine whether
a 10-cm-thick layer of water stands on a horizontal slab of glass light from within the glass is incident on the
in an oscillating series rlc circuit find the timerequired for the maximum energy present in the capacitor during
in an oscillating lc circuit l 320 mh and c 260microf at t 0 the charge on the capacitor is zero andthe current is
a 50-cm-diameter coil has 20 turns and a resistanceof 050 ohms a magnetic field perpendicular to the coil is b 002t
the drawing shows a device that can be used to measure the speed ofa bullet the device consists of two rotating disks
a beam of light is incident from air onto a flat piece ofpolystyrene at an angle of 52circ relative to a normal to the
refraction is caused by the fact thatthe angle of incidence is greater than the critical anglea given medium has
a 702 kg high jumper leaves the ground with a vertical velocity of 12 ms how high can he jump the acceleration of
a horizontal segment of pipe tapers from a cross sectional area of50 cm2 to 05 cm2 the pressure at the largerend of the
on a weekend archeological dig you discover an old club-ax thatconsists of a symmetrical 92 kg stone attached to the
a girl hears her echo return from a wall 100 sec after she makes a sound assuming the speed of sound is 330 ms how far
the magnetic field of a cylindrical magnet that has a pole-face diameter of 45 cm can be varied sinusoidally between
a 325 mol sample of an ideal diatomic gas expandsadiabatically from a volume of 01990 m3 to 0704 m3initially the
which of the following lineages make up the living amniotanbspnbspnbsp frogs salamanders and caeciliansviviparous
radium is a radioactive element whose nucleus emits an alphaparticle a helium nucleus that has a kinetic energy of
a helicopter lifts a 70 kg astronaut13 m vertically from the ocean by means ofa cable the acceleration of the astronaut
estimate how many molecules of air are in each 19 l breath you take that were also in the lastbreath einstein took