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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
the attractive electrostatic force between thepoint charges844106 c and q has a magnitude of 0975 n when the
the electric field at the surface of a charged solid coppersphere with radius 0210 m is3380 nc directed toward the
a 75kg skier rides a 2830m long lift to the top of amountain the lift makes an angle of 146 degrees with thehorizontal
a cyclist approaches the bottom of a gradual hill at a speedof 11 ms the hill is 50m high and the cyclist estimatesthat
a scuba diver has her lungsfilled to half capacity 2 l when she is 12 m below thesurface the acceleration of gravity is
calculate how much work is done when 5 moles of an ideal gas at27ordmc expand is othermally from an initial volume of 1
light of wavelength 480 nm in air falls ontwo slits 6 10-2 mm apart the slits are immersed inwater as is a viewing