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consider a uniformly charged sphere of radius r and charge density describe the motion of a test charge q that moves
what is the influence of friction on banked highway turns to address this question first consider a car that encounters
every 5 seconds between a lightning flash and the following thunder gives the distance to the flash in miles assuming
to help keep her barn warm on cold days a farmer stores 865kg of warm water how many hours would a 200-kilowatt
in figure 5-49 three connected blocks are pulled to the right on a horizontal frictionless table by a force of
the captain of a plane wishes to proceed due west the cruising speed of the plane is 285 ms relative to the air a
the statement is the effects of scaling are good for some creatures and bad for others i understand the effect of
a bullet is fired horizontally with an initial velocity of 900ms at a target located 150 ms which takes 167 seconds to
will a grandfather clock which is accurate at 20c run fast slow or the same on a 30c day the clocks pendulum consists
a mountain climber in the process of crossing between two cliffs by a rope pauses to rest she weighs 576 n as the
a piece of ice with a mass of 30 grams at 0deg c is added to 100 ml of water at 20deg c assuming no loss of heat to the
a golfer imparts a speed of 296 ms to a ball and it travels the maximum possible distance before landing on the green
the eardrum is displaced surprisingly little when a sound wave strikes it some idea of the displacement of the eardrum
determine the macroscopic absorption cross section for a uranium fuel rod which has been enriched to 15 wo u-235 and
a beam of 1 ev neutrons with beam density 103 cm-3 strikes a 1 micron thick pure gold target if the beam cross section
1 a positively charged conducting sphere is orbited by an electron at a constant distance the potential difference that
1 a parallel-plate capacitor has a capacitance of 190 microf what charge on each plate would produce a voltage of 360 v
a bullet with mass 20 grams and velocity 118 ms collides with a wooden block of mass 20 kg the wooden block is
a wind turbine converts some of the kinetic energy of the wind into electric energy suppose that the blades of a small
an astronaut is being tested in a centrifuge the centrifuge has a radius of 10 m and in starting rotates according to
two loudspeakers emit sound waves along the x-axis the sound has maximum intensity when the speakers are 25 cm apart
a football is kicked at an angle 370deg with a velocity of 200 ms calculate a the maximum height b the time of travel
three silver wires of equal length are connected in series with a 150 v battery their cross-sectional areas are 100 500
two particles with charges of 20 nc and -20nc are placed at the points with coordinates 0 4 cm and 0 -4 cm a particle
an interferometer is set up to carefully measure changes in length the laser source has a wavelenth of 632nm and the