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the 4 tires of a car are inflated to a gauge pressure of 23 105 pa each and every tire has an area of 0021 m2 in
a jet flying at 137 ms banks to make a horizontal circularturn the mass of the jet is229 times 105 kg and radius of the
a satellite has a mass of 6358 kg and is in a circular orbit 489times 105 m above the surface of a planet the radius of
in a large centrifuge used for training pilots and astronauts asmall chamber is fixed at the end of a rigid arm that
a 650 kg elevator starts from rest it moves upward for 350 s with stable acceleration until it reaches its cruising
a solid steel ball and a tennis ball the same size are dropped at the same time find which ball has the greater force
archaeologists have unearthed a primitive stringed instrument at the ancient sumerian city of lude the ludicrous harp
an opening of area 0264 cm2 in an otherwise closed beverage keg is 484 cm below the level of the liquid of density105
each of the electrons in the beam of a televisiontube has a kinetic energy of 150 kev the tube is oriented so thatthe
two jets of material from the center of a radio galaxy fly away in opposite directions both jets move at 0676 c
a wagon is rolling forward on level ground friction is negligible the person sitting in the wagon is holding arock the
suppose a recently found elementary particle has an average life time t 106 ns when at rest for instance a charged
when t 0 the position of a particle is 6 m and its velocity is 2 ms from t 0 to t 6 s the acceleration of the
in the ideal atwood aparatus in which m1 20 kg sits on a 20 degree incline plane what is m2 if both masses are at
a person walks 25 m west and then 45m at an angle of 60 degrees north of east estimate the magnitude of the
a uniform rod is 20 m long the rod is pivoted about a horizontal frictionless pin through one end the rod is released
rectangular loop a rectangular loop area 015m2 turns in a uniform magnetic field b 017 t when the angle between the
a 15 m 419 n uniform ladder rests against a friction less wall making an angle of 636degree with the horizontalcompute
a clay ball of 01 kilogram is dropped 10 cm above a table at halfits mass the collision of the clay ball with the table
a dentist uses a concave mirror focal length 4 cm to examine some teeth if the distance from the object to the mirror
a gold prospector finds a solid rock that is composed solely of gold and quartz the volume and mass of the rock are
a particle with charge 20 c moves through a uniform magneticfield at one instant the velocity of the particle is 15i
a super ball of mass 005 kg is dropped from a height of 10 cm above a table top it bounces off the table and rises to
a stroboscope is a light that flashes on and off at a fix rate it can be used to illuminate a rotating object and if
a move theater projector produces a 30 m wide image of a 25 cm wide picture on a screen that is 18 m distant the focal