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a real upright object 8 cm high is placed 12 cm to the left of a converging lens offocal length 8 cm a second
a sample of gasoline was run through the gc yielding several peaks indicating the components that made up the gasoline
a yo-yo is made of two solid cylindrical disks each of mass 0051 and diameter 0080 joined by a concentric thin solid
a vinyl record plays at 333 rpm assume it takes 9 s for it to reach this full speed starting from resta what is its
one solenoid is centered inside another the outer one has a length of 460 cm and contains 6700 coils while the coaxial
the rate constant k for a reaction was measured as a function of temperature a plot of ln k versus 1t in k is linear
a 4 kilogram block of ice is removed from a freezer where its temperature was maintained at 20 degrees celsius how
the turbine and associated rotating parts of a jet engine have a total moment of inertia of 29 kg m2 the turbine is
determine the moment of inertia for three children weighing 610 lb 470 lb and 81 lb sitting at different points on the
a spaceship with a proper length of 105 m passes an observer at a speed of 074355c what is the length of the ship as
in 2000 nasa placed a satellite in orbit around an asteroid consider a spherical asteroid with a mass of 800times1015
a 10 object is released from rest 500km above the earthpart a what is its impact speed as it hits the ground ignore air
an ambulance traveling at 47 ms approaches a car heading in the same direction at a speed of 31 ms the ambulance driver
the pitch of the sound from a race car engine drops the musical interval of a third when it passes the spectators this
a centrifuge in a medical laboratory rotates at an angular speed of 3400 revmin when switched off it rotates through
a large grinding wheel in the shape of a solid cylinder of radius 0330 m is free to rotate on a frictionless vertical
the pendulum in a grandfather clock is made of brass and keeps perfect time at 20 degrees celsius how much time is
when 130 v is applied across a wire that is 75 m long the magnitude of the current density is 16486 am2 find the
stan and ollie are standing next to a train track stan puts his ear to the steel track to hear the train coming he
the longest string a thick metal wire on a particular piano is 30 m long and has a tension of 4000 n it vibrates with a
a man in a tree fort 7 m above the ground he throws a water balloon at a speed of 3ms at a downward angle of 17 degree
why are masses in the chemistry laboratory usually determined by a difference methodusing a beaker to contain the
a sound wave with intensity 23 mwm2 interferes constructively with a sound wave that has an intensity of 16 mwm2 what
two waves with identical frequency but different amplitudes a1 50 cm and a2 30 cm occupy the same region of space are
200 l of 0100m ph 900 glycine buffer starting with the sodium chloride salt of zwitterionic glycine and 100m naoh is