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a man with mass 700 kg stands on a platform withmass 250 kg he pulls on the free end of a rope thatruns over a pulley
the current in an electro magnet connected to a 240 v line is 145aat what rate must cooling water pass over the coils
ammonia the ammonia molecule nh3 has apermanent electric dipole moment equal to 147 d where 1 d 1debye unit 334
assuming that a neutron star has the same density as a neutron calculate the mass in kg of a small piece of a neutron
a 200 kg block hangs from a rubber cord being supported so thatthe cord is not stretched the unstretched length of the
a simple pendulum is made from a string that is 065m inlength with a mass of 02 kg attached to the free end the mass is
two identical tiny spheres carrying the same charge are 10m apartcenter to center in vacuum and experience an
an electron accelerated from rest through a voltage of 440 v enters a region of constant magneticfield if the electron
the distance between the first and fifth minima of a single-slitdiffraction pattern is 025 mm withthe screen 50 cm away
1 a particle of mass m trapped in a 1-d box of length lhas energies with en h2 pi2 2ml2 x n2a what is theground state
both drawings show the same square each of which has a side oflength l 088 m an observer o is stationed at onecorner
estimate the molar heat of vaporization of a liquid whose vaporpressure doubles when the temperature is raised from 85c
a charge of uniform volume density 40ncm3 fills acube with 80 cm edges what is the total electric flux through the
a pure titanium cube has an edge length of 265 how many titanium atoms does it contain titanium has a density of
when its coil rotates at a frequency of 230 hz a certain generatorhas a peak emf of 86 v a what is the peak emfof the
a man stands at midpoint between two speakers that are broadcasting an amplified static hiss uniformly in all
in the process of making lead shot molten lead is drippedinto water the lead forms small drops that harden to formthe
potassium atomic mass 3019 amu has three isotopes with masses 389367 amu 399640 amu and 409618 amu the abundance of
two point charges are on the y-axis a 40 microc charge is located at y 105 cm and a -206 microc charge is located at y
white light is incident on a soap film n 130 ubaur tge reflected light looks bluish because the red lightlambda 670nm
consider the reaction when aqueous solutions of ammonium sulfide and potassium nitrate are combined the net ionic
a steel rigid tank contains 6kg of water liquid-vapor at 60 degrees celcius with a volume of 05 m3 state 1 the tank is
a round flywheel is going 35 rads and the moment of inertia is25 kg-m2 it merges with an oval flywheel with inertiaof
perform each of the following conversionsbeing sure to set up clearly the appropriate conversion factor in each casei