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in a television tube electrons travel down the tube and strike the fluorescent material at the end of the tube their
a plane accelerates down a runway markers beside the runway are 95 m apart the plane moves between two adjacent markers
suppose a block with mass 280 kg is resting on a ramp if the coefficient of static friction between the block and the
blood circulating from the heart to the hands and back to the heart travels a distance of about 19 m in 42 s find the
during 5 successive 093 min intervals a runner moves at the following constant speeds 0424 kmmin 0224 kmmin 0160 kmmin
a 10-m-by-14-m house is built on a 12-cm-thick slab of concrete what is the rate of heat loss through the slab if the
a 215-g bullet is fired from a rifle it takes 215 10-3 s for the bullet to travel the length of the barrel and it exits
while driving north at 25 ms during a rainstorm you notice that the rain makes an angle of 38 with the vertical while
a ball is thrown from a point 10 m above the ground the initial velocity is 198 ms at an angle of 340deg above the
a ballplayer standing at homeplate hits a baseball that is caught by another player at the same height above the ground
three equal point charges each with charge 125 are placed at the vertices of an equilateral triangle whose sides are
a small plane is flying directly west with an airspeed of 340 ms the plane flies into a region where the wind is
a kite is hovering over the ground at the end of a straight 45-m line the tension in the line has a magnitude of 14 n
a hot-air balloonist rising vertically with a constant velocity of magnitude v 500 ms releases a sandbag at an instant
a subway train starts from rest at a station and accelerates at a rate of 160 ms2 for 140 s it runs at constant speed
a subway train starts from rest at a station and accelerates at a rate of 160 ms squared for 14 seconds it runs at a
a parallel-plate capacitor with area 0100 m2 and plate separation of 400 mm is connected to a 2100 v batterya what is
an airplane travels a distance 270 m down the runway before taking off if it starts from rest moves with a constant
two forces are applied to a car in an effort to move it as shown in the following figure where f1 415 n and f2 354 n
what is the magnitude of the electric field at a point 045cm away from a point charge of 20pc what is the direction of
when you take your 1300 kg car out you go around a corner ofradius 59 m with speed of 16 ms the coefficient of
a violinist is tuning her instrument to concert a 440 hz she plays the note while listening to an electronically