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a playground carousel is free to rotate about its center onfrictionless bearings the carousel has an angular speed
in an engine an almost ideal gas is compressed adiabatically tohalf its volume in doing so1380 j of work is done on the
an ideal gas expands at a constant total pressure of 54 atm from 405 mlto 668 ml heat then flows out of thegas at
a 40g mass is attatched to a wire of diameter 064mmwith a full stretched of 060mm which is 15000 of the originallength
a wheel rotating about a fixed axis has an angular position givenby theta 3 - 2t3 where theta is measured in
what is the minimum non-zero thickness for the air layerbetween two flat glass surfaces if the glass is to appear dark
a skier is initially stationary but then accelerates at24 ms2 down a hill that isinclined 23deg below the horizontal
a raindrop at rest in a cloud 7600 meters above earth startsits journey toward earth determine how long it takes the
the three ropes shown are tied to a small very light ring that is stationary two of these ropes are anchored to walls
water molecule can be visualized as anisosceles triangle with an oxygen ion -32e-19 c and two hydrogenions 16e-19 c
a how much power is radiated by a tungsten sphere emissivitye 035 of radius 20 cm at atemperature of 26degcwb if the
consider a collision between an x-ray photon of initial energy590 kev and an electron at rest inwhich the photon is
two infinite lines ofcharge with equal linear charge densities lcm are placed alongthe x and y axis derive an
a 85 w sodiumlamp 589nm radiates energy uniformly in all directionsa at what rate are photons emitted by
the stopping potential for electrons emittedfrom a surface illuminated by light of wavelength 480 nm is 0890 v when the
the accepted value of the specific gravity of a rectangular metalblock is 270 a student determines the dimensions to be
in youngs double slit interferance experiment it is foundthat the second bright fringe is at the angle of 20 degrees if
a ray of light in air enters a glasss surface the angle ofrefraction in the glass is measured to be 45 degrees if the
an electrically neutral model airplane is flying in ahorizontal circle on a 30-m guideline which is nearly parallel
a disabled tanker leaks kerosene n 120 into thepersian gulf creating a large slick on top of the watern 130 a if you
a charge q 56 muc is placed at the origin and asecond charge q -42 muc is placed at x 1m find the electric potential
the speed of a bobsled is increasing because it has anacceleration of 26 ms2 at agiven instant in time the forces
the contraction of the left ventricle chamber of the heartpumps blood to the body assuming that the inner surface of
a rocket of mass 45 x 105 kg is in flightits thrust is directed at an angle of 540deg above the horizontal and has a
a certain brand new never-used 15 volt cell contains40mc of charge what is the amount of electricenergy stored in the