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one well-known president argued that savings during an economic downturn such as a recession is a bad idea who was
a uniform string of length is 25 m and mass 001 kg is placed under a tension 10na what is the frequency of its
some bacteria are propelled by biological motors that spin hair-like flagella a typical bacterial motor turning at a
one rechargeable battery of mass 150 g delivers an average current of 180 ma to a compact disc player at 160 v for 240
suppose you measure a cylinder and determine that the radius is 052 001 cm and its height is 320 015 cmwhat is the
the heating element of an electric coffee maker operates at 120 v and carries a current of 200 a assuming the water
consider an electron in the ground state of the hydrogen atom separated from the proton by a distance of 00529 nma
how many conduction electrons are there in a 500 diameter gold wire that is 400 long how far must the sea of electrons
a mass-spring system completes 7 full oscillations in a time of 144 seconds1 what is the period of one oscillation2
a proton enters the gap between a pair of metal plates an electrostatic separator that produces a uniform vertical
if an enclosed volume of ideal has is heated raising its temperature from 10 c to 20 c by what factor does the pressure
an object with mass m 11 g and charge q is placed at point a which is 005 m above an infinitely large uniformly
the sound level in the middle of a rave is 900 db what is the sound intensity at this
two parallel infinite nonconducting plates are 115 cm apart and have charge distributions of 31 microcm2 and -31
three masses 3kg 5kg 7kg are located in the xy-plane at the origin 23 m 0 and 0 15 m respectively determine the center
a friction-less test track is banked so that cars can move around the track at 37 ms without slipping up or down the
zartan of the jungle crosses a river by grabbing an 8 m long vine conveniently hanging from a strong branch and
a hill is 100m long and makes an angle of 12 degrees with the horizontal as a 50 kg jogger runs up the hill how much
a sled at rest on a flat nearly frictionless surface is suddenly pushed with a force of 402n if the sled has a mass of
a famous mad-physicist dr strangelove tries to find out how much energy is contained in one liter of sunlight assume
a 100-kg mass is placed on a 250o degree incline and friction keeps it from sliding the coefficient of static friction
a homogeneous cylinder of radius 240cm and mass 400kg is rolling without slipping along a horizontal floor at 830ms how
as you saw in part b the vapor above the cyclohexane-acetone solution is composed of both cyclohexane vapor and acetone
a woman at an airport is towing her 200 kg suitcase at constant speed by pulling on a strap at an angle theta above the