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a series dc circuit contains a 4mh inductor and an 80 ohm resistor in series with a 12v battery what is the time
the magnetic field in the air gap between the magnetic poles and the armature of an electric generator has a flux
a certain voltmeter draws 002ma for full-scale deflection at 50v a what is the resistance of the voltmeter b what is
a rectangular loop of wire 6cm wide and 10cm long is placed with its plane parallel to a magnetic field of 008t what is
rodney weighs 160 lb he sits in a comfortable chair in which 90 of his weight is supported by his rear end and upper
a beam of pions pi-mesons with rest energy mpic2140 mev consisting of 1010pionscm2s moves with speed such that the
susan mass52 kg rides upward in an elevator while standing on a bathroom scale the scale reads 575 n draw a fbda is the
the deltoid muscle connects the shoulder blade to the upper arm humerus and so contraction of the deltoid raises the
a person with bifocal vision has a prescription of -175d150d which represents the refractive power of the lenses to
a certain lightbulb has a tungsten filament with a resistance of 195 when at 200degc and 142 when hot assume the
the position vector of a particle of mass 1 kg is given by rarrowbolditalic 6 ihatbold 3t2 jhatbold where r is in
an object with total mass mtotal 158 kg is sitting at rest when it explodes into three pieces one piece with mass m1
a well-insulated electric water heater warms 111 kg of water from 200deg c to 430deg c in 290 min find the resistance
an air-core solenoid with 64 turns is 800 cm long and has a diameter of 120 cm when the solenoid carries a current of
an inductor in the form of a solenoid contains 380 turns and is 144 cm in length a uniform rate of decrease of current
a lightbulb has a resistance of 175 when operating with a potential difference of 210 v across it what is the current
a ladder of length l 23 m and mass m 190 kg rests on a floor with coefficient of static friction s 049 assume the
a cardinal richmondena cardinalis of mass 380times102 kg and a baseball of mass 0145g have the same kinetic energy what
consider a series rlc circuit with r 15 l 208 mh c 75 microf and a maximum voltage of 142 va what is the impedance
at amusement parks there is a popular ride where the floor of a rotating cylindrical room falls away leaving the backs
the hammer throw is a track-and-field event in which a 730-kg ball the hammer is whirled around in a circle several
a cd with a diameter of 120 cm starts from rest and with a constant angular acceleration of 100 radsec2 acquires an
a beam of vertically polarized light encounters two polarizing filters as shown in the figurefigure 1 calculate the
a turntable is initially at rest it starts rotating with a constant maximum angular acceleration for a period of 5
in designing rotating space stations to provide for artificial-gravity environments one of the constraints that must be