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in fig 9-39 three uniform thin rods each of length l 42 cm form an inverted u the vertical rods each have a mass of11 g
a 230 rm kg child plays on a swinghaving support ropes that are 220 rm m long a friend pulls herback until the ropes
a 442 kg particle has the xy coordinates -189 m 0146m and a 334 kg particle has the xy coordinates 0218m -0244 m both
you are moving due north on your tricycle with a velocity of 020ms you see a fellow tricyclist moving with relative
a heat engine operating at a maximum efficiency of 280 does175 joules of work in each cyclea how much heat is absorbed
a teaspoon of an organic oil dropped on the surface of a quiet pond speads out to cover almost an acre the oil film has
a charge of q is located atthe origin while an identical charge is located on the xaxis at x 043 m a thirdcharge of 3q
two identical objects traveling in opposite directions with thesame speed v make a head-on collisiona find the speed of
a tightrope walker with a mass of 600 kg stands at the center of arope which was initially strung horizontally between
a person is sitting on a freely spinning lab stool no friction when this person extends her arms is her moment of
consider a non-ideal springthat exerts a force fx-150 nm x 300 nm2 x2 when it isdisplaced a distance x from its
a 750g mass traveling at 8ms undergoes a head on elastic collision with a 50g mass traveling towards it at 8ms what is
a ball of mass m slides down inside a spherical glassbowl of radius r after it is released from rest atthe lip of the
a 24-kg projectile is fired at an angle of60deg above the horizontal with an initial speed of 250 ms at the highest
on a cold winters day heat leaks slowly out of a house at a rate of 200kw if the inside temperature is 22c and the
what is the speed of an electron that is released from rest and accelerated through a potential difference of 160
1 whats the charge of a glass rod after rubbing it on silk2 whats the charge of silk after rubbing with a glass rod 3
the refrigerator in your kitchen does 480j of work to remove 110 jof heat from its interiora how much heat does the
a 200-kg mass object traveling east at 200 ms collides with a 300-kg mass object traveling west at 100 ms after the
in the figure two particles each with mass m 079 kgare fastened to each other and to a rotation axis at oby two thin
a 146 kg block and a 292 kg block are resting on a horizontalsurface between the two is squeezed a spring k1170 nm
find the speed at which superman mass830 kg mustfly into a train mass 16756 kg traveling at 1000 kmhr to stopit
a canoe has a velocity of 040 ms southeast relative to the earth the canoe is on a river that is flowing at 050 ms east
a 500g bullet moving with an initial speed of 400ms is fired into and passes through a 100 kg block the block initially
a 600 kg person running at an initial speed of 400 ms jumps ontoa 120 kg cart initially at rest the person slides on