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an alpha particle is traveling at a speed v 670x105 ms in a west to east direction a magnetic field b 0882 t is
whenever two apollo astronauts were on the surface of the moon a third astronaut orbited the moon assume the orbit to
the earth orbits the sun in an approximately circular orbit of radius 1496 x 1011 m about 93 million miles in a period
the earth orbits the sun once per year what is the centripetal force keeping the earth in
a gunner wants to fire at a target at a horizontal distance of 12500 m from his positiona if his gun fires with a
according to a reliable report in 1795 a member of the turkish embassy in england shot an arrowto a distance of 441m
a sailboat tracking against the wind moves as follows 32 km at 45 degrees east of north 45 km at 50 degrees west of
a displacement vector has a magnitude of 120 km in the direction 400 degrees west of north what is the north component
a 110-g wad of sticky clay is hurled horizontally at a 110-g wooden block initially at rest on a horizontal surface the
a football is kicked from the ground with a velocity of 38 ms at an angle of 40 degrees and eventually lands at the
given two stars one emits light with a peak wavelength at 400nm deep blue to your eye and one emits with a peak
the calorie or kcal is another energy unit and is commonly used to measure food energy as well as heat james joule
you make a plot of displacement y y0 in meters versus spring force fs in newtons for the data you have collected in
a crate is held at rest on a frictionless 53 degree ramp by a rope parallel to the incline if the tension in the rope
two 30-cm-diameter electrodes with a 015-mm-thick sheet of teflon between them are attached to a 90v battery without
a plane travels horizontally at 737 ms at an angle of 359 degrees west of north taking east as the positive x-direction
a proton has an initial speed of 46x105 msa what potential difference is required to bring the proton to restb what
an astronaut drops a feather from 35 m above the surface of the moon if the acceleration of gravity on the moon is 162
a system consisting entirely of electrons and protons has a net charge of 183 10-15 c and a net mass of 461 10-23 kga
an object with a charge of -38 microc and a mass of 0046 kg experiences an upward electric force due to a uniform
an alpha particle alpha which is the same as a helium-4 nucleus is momentarily at rest in a region of space occupied by
when two identical ions are separated by a distance of 58 10-10 m the electrostatic force each exerts on the other is
a relief airplane is delivering a food package to a group of people stranded on a very small island the island is too
a ball is fired at an angle of 45 degrees from ground level in the absence of air resistance if the maximum range is
a 125-m-diameter wrecking ball hangs motionless from a 175-cm-diameter cable the wrecking ball is solid and is