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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
a uniform ladder of mass m and length l leans against a frictionless wall if the coefficient of static friction between
under what conditions would the frictional forces be expected to be equal in magnitude for a car moving up an incline
the electron in the b-field an electron moves in a 05nt b-field if the radius of the circular orbit is 1cm what is its
if a force of 10 n is needed to open an 100 cm wide door when applied at the edge opposite the hinges what force must
at a winter fair a 655-kg stunt man is shot from a horizontal cannon that rests at the edge of a frozen lake the human
a concave mirror has a focal length of 442 cm the distance between an object and its image is 681 cm find a the object
light falls on a pair of slits 000198 cm apart the slits are 842 cm from the screen the first-order bright line is 188
a cat is stuck in a tree you are designated with the job to get it out yet you do not want to climb the tree because
a wheel starts from rest and rotates about its axis with constant angular acceleration after 74 seconds have elapsed it
a solid disk rotates in the horizontal plane at an angular velocity of 0049 rads with respect to an axis perpendicular