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a microwave oven is powered with an electron tube called a magnetron which generates electromagnetic waves of
oxygen for hospital patients is kept in special tanks where the oxygen has a pressure of 700 atmospheres and a
a hollow wire of outer radius 10 cm and inner radius 5 cm carries a uniformly distributed 12 amp current discover the
a jet plane passes over you at a height of 5030 m and a speed of mach 153 a discover the mach cone angleb how long
the identical twins speedo and goslo join a migration from the earth to planet x it is 200 light-years away in a
a particle of mass 982 g and charge 677 muc moves during a uniform magnetic field in a nbspregion where the free-fall
what mass of water at 250deg c added to a styrofoam cup containing two 600-g ice cubes from a freezer at -170deg c will
a spaceship and an asteroid are moving in the similar direction away from earth with speeds of 076c and 040c
a 403-kg block of ice at 0 degc is sliding on a horizontal surface the initial speed of the ice is 950 ms and the final
in an rlc series circuit that includes a source of alternating current operating at fixed frequency and voltage the
a runner weighs 595 n about 130 lb and 70 of this weight is water1 how many moles of water are in the runners body2 how
in the figure below two straight conducting rails form a right angle a conducting bar in contact with the rails starts
the owner of a van installs a rear-window lens that has a focal length of -0330 m when the owner looks out during the
a ray of light enters an equilateral prism made of material with n 145 at an angle of incidence theta the internally
a saw blade has a mass of 05 kg and a radius of 10 cm and is rotating at 300 rpm once turned off it takes 5 seconds to
a steel ball by mass 400 g is dropped from a height of 320 m onto a horizontal steel slab the ball rebounds to a height
a black body has a mass of 376 kg specific heat of 2000 jkg middot cdeg surface area of 0198 m2 emissivity 100 and
a disabled tanker leaks kerosene n 120 into the persian gulf creating a large slick on top of the water n 130a if you
light of wavelength 634 nm is incident perpendicularly on a soap film with n 135 suspended in air what are the smallest
a double-convex lens is to be made of a transparent material by an index of refraction of 14 one surface is to have
a water tower is a familiar sight in many towns the purpose of such a tower is to provide storage capacity and to
if a scuba diver descends also quickly into the sea the internal pressure on all eardrum remains at atmospheric
a weather balloon is designed to expand to a maximum radius of 20 mat its working altitude where the air pressure is
a star ship moving toward earth with a speed of 078 c launches a shuttlecraft in the forward direction the shuttle
problem a weather balloon is designed to expand to a maximum radius of 20m at its working altitude where the air