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consider two massless springs connected in series spring 1 has aspring constant k1 and spring 2 has a springconstant k2
europium is a lanthanide element found in parts per billion levels in natural waters it can be measured from the
a copper rod has a length of 15 m and a cross-sectional area of40times10-4 m2 one endof the rod is in contact with
what are advantages of attenuated total reflectance atr sampling in ir over beam through sample samplingwhat region of
a massless rope is wrapped around a wheel of radius r 2 meters the wheel is mounted with a frictionless bearing on the
if the spin of one electron in an orbital is counterclockwise what is the spin of the other electron in that orbitala
in a double-star system two stars of mass 60 1030 kg eachrotate about the systems center of mass at a radius of 20
the circular blad on a radial arm saw is turning at262 rads at the instant the motor is turned off in 18 secthe speed
a circular-motion addict ofmass 85 kg rides aferris wheel around in a vertical circle of radius 10 m at aconstant speed
in a reversible adiabatic expansion of an ideal gas the pressure and volume are related pvgama constant by show that
when at rest two trains have sirens that emit a frequency of 300hz the trains travel toward one another and toward an
a long straight thin round conductor carries a linearcharge density lambda7 mucm what is the electric field in the
a molecule has a rotational inertis of 14000 upm2 and isspinning at an angular speed of 43 x 1012 radsa express the
a two-stage rocket accelerates from rest at 327 ms2 for 682seconds it then accelerates at 298 ms2 for another
a room measures 30 m by 45 m by 60 m if the heating and air-conditioning ducts to and from the room are circular with
a system consists of two positive point charges q1 and q2gtq1 the total charge of the system is 620 muc and each charge
long straight wire a long straight wire has fixed negative charge with a linear charge density of -31 ncm the wire is
what coefficients are needed to balance the equation for the complete combustion of methane enter the coefficients in
nitric acid is usually purchased in a concentrated form that is 703 hno3 by mass and has a density of 141 gmlhow much
a toaster uses a heating wire when the toaster is turned on at 13degc the initial current is 213 a a few seconds later
find the distancein mum between the plates of a parallel plate capacitor if in the dielectriccompletely filling that
suppose the mass spectrum of a hypothetical monatomic element x contains a signal at mass number 13 and another of
how many ml of 125m agno3 and ml of 839m nacl are needed to react and produce 1000 gram of solid
you dip your finger into a pan of water twice each secondproducing waves with crest that are separated by 011 m1
what characterizes constant velocity motion on a position-time graph on a velocity-time graph and on a