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the greenland ice sheet covers an area of about 1 7 1 06 km2 with a mean thickness of about 1 4 km assume that the
some object moves 2200 m at an angle of 42deg north of west during this motion a 680 n force acts on the same object
a flatbed truck with a box sitting on the bed accelerates from rest on level ground the trucks speed as a function of
when ultraviolet light with a wavelength of 4000 nm falls on a certain metal surface the maximum kinetic energy of the
an automotive junkyard crushes old vehicles into cubes 044 m on a side assume that these cubes are made of iron find
a 63 c point charge and a 17 c point charge are separated by a distance of 000034 m what is the electric potential
an electromagnetic wave has an electric field amplitude of 325 vma what is the maximum magnitude of the poynting vector
an astronaut in a rocket passes a meter stick moving parallel to its long dimension the astronaut measures the
suppose we know that an electron in an excited state has a tangential velocity v 365 x 105 msa what energy level n is
the largest wavelength of light that will induce a photoelectric effect in potassium is 564nm calculate the work
an object is made of glass and has the shape of a cube 011 m on a side according to an observer at rest relative to it
the mean lifetime of muons in their rest frame is 220us now consider a muon traveling through the earths atmosphere at
carbon tetrachloride n146 is poured into a container made ofcrown glass n152 if light ray in the glass is incident on
the primary window of an electric train transformer has 400 turns and the secondary has 50 if the input voltage is 120
the location of a particle is measured with an uncer- tainty of 011 nm one tries to simultaneously measure the velocity
a small circular hole 300mm in diameter is cut in the side of a large water tank 180m below the water level in the tank
at one point in a pipeline the waters speed is 275 and the gauge pressure is 380times104 find the gauge pressure at a
a hydrogen atom initially in its ground state absorbs a photon of energy 209 x 10-18 j the electron rises to some
estimate the magnitude of the electric field strength due to a proton in a hydrogen atom at a distance of 529e-11 m the
a 50 g horizontal metal bar 12 cm long is free to slide up and down between two tall vertical metal rods that are 12 cm
a 15-cm-long metal rod pulled along two frictionless conducting rails at a constant speed of 35 ms the rails have
use the worked example above to help you solve this problem an object 308 cm high is placed 193 cm from a convex mirror
white light illuminates an oil film on water viewing it directly from above it looks red assume that the reflected red
a laser beam whose wavelength is 681 nm falls on a barrier containing a pair of very narrow slits a screen is located
in a double-slit experiment slits separated by 1260e-4 m are illuminated by a coherent 571 nm light source what is the