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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
the escape speed from the earth is 112104 ms so that a gas molecule travelling away from earth near the outer boundary
the human eye is mainly sensitive to 560 nm light what is the temperature of a black body that would radiate mainly
coherent light of wavelength 525 nm passes during two thin slits that are 0415 mm apart and then falls on a screen 750
the generator in a purely inductive ac circuit has an angular frequency of 120pi rads if deltavmax 132 v and l 0130 h
12 arthur and betty start walking toward each other when they are 100m apart arthur has a speed of 3ms and betty has a
the area enclosed with the wire loop in the figure below is reduced from 27 cm2 to 9 cm2 in a time interval of 009 s
a small rectangular loop of wire is located close to a long straight wire initially carrying a current i 91 a see
a chamber with a fixed volume of 10 m3 contains a monatomic gas at 300 x102 k the chamber is heated to a temperature of