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an electron traveling at 370 ms enters a21 t magnetic field the angle betweenthe velocity and the field is 133o find
apply two forces to a ring by hanging a mass of 100g at 30 degrees and a mass of 200g at 150 degrees find the third
a cylindrical habitat in space 581 km in diameter and 377 km longhas been proposed by gk orsquoneill 1974 such a habit
solar cell a solar cell generates a potential difference of 010 v when a 600 resistor isconnected across it and a
very dangerous voltages can be found inside a tv set some adviserepairmen to work with one hand in a pocket why is a
two infinitely long coaxial cylindrical surfaces having cylindrical radii a and b respectively where a lt b carry
an alpha particle the nucleus of helium nucleus with charge2e and mass 40u 1u 166 x 10-27 moves in acircular orbit of
a 20muf capacitor is charged by a 10-v battery through a 50komega resistor what is the time constant of the circuit
the drawing shows two situations in which charges are placed on thex and y axes they are all located at the
a 830-mh inductor and a 590-muf capacitor are connected inseries with a generator whose frequency is 449 hz the rms
a tank circuit in a radio transmitter is a series rcl circuit connected to an antenna the antenna broadcastsradio
ten boxes each 210 cm high and weighing180 n initially are all side by side onthe floor the boxes are lifted and placed
a 340 kg block starts from rest andslides down a frictionless incline dropping a vertical distance of330 m before
a current i 13 a is directed along the positivex-axis and perpendicularl to a magnetic field a magneticforce per unit
an electron is accelerated through 2450 v from rest and then enters a region wherethere is a uniform 180 t
a lamp r 154 omega anelectric heater r 24omega and a fan r 48omega are connected in parallel across a 117 v linea
a magnetic field has a magnitude of 00686 t and is uniformover a circular surface whose radius is 0166 m the field
a 500 gram ball swings in a vertical circle at the end of a 15 mlong string when the ball is at the bottom of the
the filament of anincandescent lightbulb is a thin tungsten wire suppose a lightbulbhas a resistance of 42 omega at
two metal spheres each of radius 25 cm have a center-to-center separation of 26 m sphere 1 has a charge of 14 x10-8 c
a sun yacht is a spacecraft with a large sail that is pushed by sunlight although such a push is tiny in everyday
a golf ball of mass 450 x 10-2kg is struck by a club contact lasts 239 x 10-4 s and theball leaves the tee with a
a coil is wrapped with 195 turns of wire on the perimeter of a square frame of sides 169 cm each turn has the same area
a circular wire loop of radius 81 m lies in a plane perpendicularto a uniform magnetic field of magnitude 04 t in 01 s
the drawing shows a type of flow meter that can be used to measure the speed of blood in situations when a blood vessel