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a solid ball encounters a 0760 m vertical rise on the way back to the ball rack ignore frictional losses and assume
an electron in a magnetic field has a cyclon frequency of 70 x 1012 hz what is the magnetic field strength the mass of
what is the height that the ball needs to be dropped from to make it completely around the loop on the track neglect
determine the anchoring forces rx and ry required to hold in place a conical nozzle at the end of hose when the water
a 1350 n uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end a w 1860
a 350-kg child swings in a swing supported by two chains each 292 m long the tension in each chain at the lowest point
a 004-kg baseball traveling in a horizontal direction with a speed of 16 ms hits a bat and is popped straight up with a
what is the smallest thickness of a soap film that would appear black if illuminated with 470 nm light assume there is
one end of a spring is attached to a wall a 26 rm n pull on the other end causes the spring to stretch by 34 rm cm what
a projectile of mass 20 kg approaches a stationary target body at 50 ms the projectile is deflected through an angle of
a duffel bag of mass 15 kg slides down a 35o incline with an acceleration of 11 ms2 as showna calculate the normal
a proton moves at 10x107 ms perpendicularly to a uniform magnetic field it experiences an acceleration of 20x 1013 ms2
an electron is accelerated through 2400 v from rest and then enters a region where there is a uniform 170 t magnetic
a proton moves eastward in the plane of earths 5x10-5 t magnetic equator so that its distance from the ground is
a 62-kg astronaut is in space far from any objects that would exert a significant gravitational force on him he would
in rutherfords famous scattering experiment alpha particles helium nuclei were fired at 20 x 107 ms over a large
two electrons in the same atom both have n 9 and 3 keep in mind that the electrons are in distinguishablea how many
an object is placed 13 cm in front of a concave mirror whose focal length is 23 cm the object is 27 cm tall determine a
an object that is 35 cm in front of a convex mirror has an image located 14 cm behind the mirror how far behind the
neurons in our bodies carry weak currents that produce detectable magnetic fields a technique called
an electron in the beam of a typical television picture tube is accelerated through a potential difference of 20000 v
a positron accelerated from rest by a fixed potential difference acquires a speed of 03c what speed is achieved by a
a mass m1 170 kg and a mass m2 105 kg are suspended by a pulley that has a radius of 98 cm and a mass of 31 kg see
three long straight electrical cables running north and south are tightly enclosed in an insulating sheath one of the
in the bohr theory of the hydrogen atom an electron moves in a circular orbit about a proton with a radius of 53 x 106