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the current through a lamp connected across 120 v is 048 a the resistance when the lamp is on is 250 ohm when the lamp
a bicyclist is sitting on her bike on the side of the road when she sees her friend riding up behind her on his bike at
a 10 kg block is set in motion upa 20 degree inclined plane with an initial speed of 80 ms with no additional forces
a 560 kg cheerleader uses an oil-filled hydraulic lift to hold four 120 kg football players at a height of 0900m if her
the current through a lamp connected across 120 v is 048 a what is the resistance when the lamp is
a bowling ball mass 74 kg radius 011 m and a billiard ball mass 039 kg radius 0028 m may each be treated as uniform
a high diver of mass 650 kg steps off a board 100 m above the water and falls vertical to the water starting from rest
its possible to estimate the percentage of fat in the body by measuring the resistance of the upper leg rather than the
a point charge with charge is held stationary at the origin a second point charge with charge moves from the point 0
a capacitor with its plates separated by paper stores 48 of charge when it is connected to a particular battery an
suppose the magnitude of the gravitational force between two spherical objects is 2000 when they are 100 apart what is
in proton-beam therapy a high-energy beam of protons is fired at a tumor the protons come to rest in the tumor
1 find the value of the polynomial ndashx2 4x 10 nbspwhen x ndash2 a nbsp6 nbsp nbspb nbspndash22 nbsp nbspc
a high diver leaves the end of a 50 m high diving board and strikes the water 14 s later 26 m beyond the end of the
1 remove the parentheses nbsp nbsp ndash3x 5y a nbsp3x ndash 5y nbsp nbspb nbspndash3x y nbsp nbspc nbspndash3x ndash
1 true or false nbsp5 is a solution for the equation x 3 13 ndash 2x2 solve the equation and check the result x ndash
an aquarium tank has inside dimensions of 15 m by 070 m by 060 m if it is filled with sea water density 1020 kgm3 what
1 the length of one of the equal legs of an isosceles triangle is 8 cm less than 4 times the length of the base nbspif
an object with mass m1 590 kg rests on a frictionless horizontal table and is connected to a cable that passes over a
in a pool game the cue ball which has an initial speed of 50 ms make an elastic collision with the eight ball which is
a gray kangaroo can bound across level ground with each jump carrying it 87 from the takeoff point typically the
a 73-rm n force pulls horizontally on a 20-rm kg block that slides on a smooth horizontal surface this block is