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two metal spheres each of radius 50 cm have a center-to-center separationof 320 m sphere 1 hascharge 110 10-8 c sphere
a 2g marble is fired vertically upward using a springgun the spring must be compressed 32cm if the marble is tojust
suppose that a 60g mixture of naphthalenec10h8 and anthracenec14h10 is dissolved in 300g of benzene when the solution
the vapor pressures of benzene and toluene are 400 and 139 torr respectively at 600c a calculate the vapor pressure of
if the acceleration of a 75 kg skydiver is 4ms2a what is the net force on theskydiverb what is the weight of the
the us navy long proposed the construction of extremely low frequency elf waves communications systems such waves could
a uranium atom is ionized seven times losing seven electrons inthe process its resulting mass is 390times10minus25
in an experiment designed to measurethe speed of light a laser is aimed at a mirror that is 470 kmdue north a detector
a 55 kg swimmer is standing on a stationary 180 kg floating raft the swimmer then runs offthe raft horizontally with a
a 205 cm tall object is placed 300 cm to the left of aconverging lens with a focal length f1 189 cm a diverging lens
an electrically charged bullet of mass 0010 kg leaves thebarrel of a gun traveling parallel to the ground and
a spherical mirror is polished on both sides when you use aconvex mirror the magnification is 16 what is the
two ac generators supply the same voltage however the firstgenerator has a frequency of 15 khz and the second has
a boat crosses a river with a width w160m in which thecurrent has a uniform speed of 150ms the pilot maintains abearing
a proton is projected perpendicularly intonbsp a magnetic field that has a magnitude of 050 t the field is then
the drawing shows three situations mdash a b and c mdash inwhich an observer and a source of electromagnetic waves are
an alpha particle charge 2e mass 664x10-27 moves head onat a fixed gold nucleus charge 79e if the distance of
the temperature of 250 moles of an ideal gas increases from 135c to 551c as the gas is compressed adiabaticaly
a pendulum of length 100 m swings in a vertical plane whenthe pendulum is in the two horizontal positions theta 90
the drawings show three charges that have the same magnitude but different signs in all cases the distance d between
when calculating dilutions using m1v1m2v2 derive an equation for the error in m2 using propagation of error partial
a solid disk of radius r and mass 266 kg is spinning atangular velocity 647 rpm about a vertical axis a solid disk
a wheel rotates about a horizontal axis it has an outerradius r1 212 cm and mass m1451 kg attached to itconcentrically
is there a correlation between the position of a metal ion in the periodic table and the colour or lack of colour of
a bat hits a moving baseball if the bat delivers a neteastward impulse of 13 n-s and the ball starts with an