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during a 738-ms interval a change in the current in a primary coil occurs this change leads to the appearance of a
a generator uses a coil that has 116 turns and a 0455 t magnetic field the frequency of this generator is 700 hz and
a house has a floor area of 186 m2 and an outside wall that has an area of 465 m2 the earths magnetic field here has a
explain the changes in acceleration velocity and net acceleration of a man jumping off a plane in a parachute describe
why is the following situation impossible a freight train is lumbering along at a constant speed of 160ms behind the
an air traffic controller observes two aircraft on his radar screen the first is at altitude 850m horizontal distance
an object moving with uniform acceleration has a velocity of 140cms in the positive x direction when its coordinate is
suppose that the position vector fot a particle is given as a function of time by rt xti ytj with xt atb and yt ct2
a helicopter lifts a 70 kg astronaut 16 m vertically from the ocean by means of a cable the acceleration of the
a wire carries a current of 0616 a this wire makes an angle of 567deg with respect to a magnetic field of magnitude
a ball is thrown upward from a platform 40 m high with a speed of 23 ms at an angle of 37 o from the horizontal what is
between the poles of a powerful magnet is a cylindrical uniform magnetic field with a diameter of 250 and a strength of
a 430 gram rock is whirled on the end of a string 45 cm long which will break under a tension of 22 na what is the
sodium ions na move at 0861 ms through a bloodstream in the arm of a person standing near a large magnet the magnetic
the magnetic force exerted on a 13-m segment of straight wire is 15n the wire carries a current of 32a in a region
an airbus a310 is initially moving down the runway at 45 ms preparing for takeoff the pilot pulls on the throttle so
brain function and magnetic fields experiments have shown that thought processes in the brain can be affected if the
the potential difference between the plates of a capacitor is 247 v midway between the plates a proton and an electron
a single circular loop of radius 024m carries a current of 27a in a magnetic field of 096t what is the maximum torque
a high-voltage power line carries a current of 120a at a location where the earths magnetic field has a magnitude of
an empty parallel plate capacitor is connected between the terminals of a 102-v battery and charges up the capacitor is
a 0175 kg baseball is thrown upward with an initial speed of 120 msa what is the force on the ball when it reaches half
a wristwatch has 2 nc of charge deposited at each numeral representing each hour the radius of the wristwatch is 300 cm
the secondary coil of a step-up transformer provides the voltage that operates an electrostatic air filter the turns
an ideal physics text with a mass of 25g is placed on a rough incline the coefficients of static and kinetic friction