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some pacemakers employ magnetic reed switches to enable doctors to change their mode of operation without surgery a
three athletes are tugging on a ring martha pulls with a force of 150n in the northernly direction evelyn pulls with a
a bead of mass m 310 kg is released from point a and slides on the frictionless track as shown in the figure below the
when a potential dierence of 150v is applied to the plates of a parallel-plate capacitor the plates carry a surface
a rectangular loop of 250 turns is 208 cm wide and 165 cm high what is the current in this loop if the maximum torque
a heavy sled is being pulled by two people as shown in the figure the coefficient of static friction between the sled
calculate the position that a lens should be placed in order to achieve the maximum magnification the length between
a college student renting in a home has a circuit box capable of drawing only 250 a before blowing a fuse with the
two conductors insulated from each other are charged by transferring electrons from one conductor to the other after 16
the power stroke of the myosin protein on an actin filament that generates tension in a muscle appears to be a 10 nm
a block with mass m 160 kg rests on a frictionless table and is accelerated by a spring with spring constant k 49970
an electron with an initial speed of 480times105 ms is brought to rest by an electric field did the electron move into
an infinitely long line of charge has a linear charge density of 700times1012 cm a proton is at distance 150cm from the
a spring with a spring constant of 420 ncm has a block attached to one end and the other end is fixedhow much work does
the top string of a guitar has a fundamental frequency of 310 hz when it is allowed to vibrate as a whole along all its
two stationary positive point charges charge 1 of magnitude 350 nc and charge 2 of magnitude 150 nc are separated by a
a model of a red blood cell portrays the cell as a spherical capacitor a positively charged liquid sphere of surface
two waves are traveling in the same direction along a stretched string the waves are 450deg out of phase each wave has
a rocket blasts off vertically from rest on the launch pad with an upward acceleration of 230 at 300 after blastoff
at the instant the traffic light turns green an automobile that has been waiting at an intersection starts ahead with a
the reaction time of the average automobile driver is about 07 the reaction time is the interval between the
a can of sardines is made to move along an x axis from x 036 m to x 140 m by a force with a magnitude given by f
a room with 29m high ceilings has a metal plate on the floor with v 0v and a separate metal plate on the ceiling a 12g
suppose the block is released from rest with the spring compressed 550cm the mass of the block is 190kg and the force
a block is launched with initial speed 21 up a 30 degree frictionless ramp how far up the ramp does it