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q1 an electron starts from rest 755 cm from a fixed point charge with q -0150 microc how fast will the electron be moving when it is too far awayq2
q1 a worker stands still on a roof sloped at an angle of 40deg above the horizontal he is prevented from slipping by a static frictional force of
q1 a 1720 kg car is travelling with a speed of 150 ms what is the magnitude of the horizontal net force that is required to bring the car to a halt
q1 a 2700-kg satellite is in a circular orbit around a planet the satellite travels with a constant speed of 6270 ms the radius of the circular orbit
q1 a 1000 kg car travelling at a speed of 20 ms skids to a halt on wet concrete where fk 050 how long is the cars skid marksq2 the potential at
qwater flows over a dam at the rate of 670 and falls vertically 78 before striking the turbine bladesestimate the speed of the water just before
q1 if the distance between two slits is 0031 mm and the distance to a screen is 250 m find the spacing between the first- and second-order bright
q1 a proton travels with the speed of 834times105 ms at an angle of 323deg with the direction of a magnetic field the field exerts a force of
q1 what is the electric field strength at the point in space where a proton m167x10 -27 kg experiences an acceleration of 1million gsq2 a 10 ball
q1 one reasonable design goal for an imaging system is to match the air disk diameter to the detector size that insures that a significant fraction
q1 a box is sliding up an incline that makes an angle of 277 deg regarding the horizontal the coefficient of kinetic friction between the box and the
q1 a 1500 w hair dryer is operated on a 160 v circuit for 5 minutes every day if electricity costs 015kwha what is the cost of operating the blow
q1 an electric field of 220000 nc points due west at a certain spot what is the magnitude of the force that acts on a charge of -10c at the spotq2 a
q1 what is the frequency of ultrasound in a medium if he wave length is 30 x 10-3 m and velocity is 1300 mmmsq2 an object of mass m is sliding with
q1 one of the most powerful cranes in the world operates in switzerland it can slowly raise a load of m 5000 tonnes to a height of h 160 m 1 tonne
q1 a thin horizontal copper rod is 159347 m long and has a mass of 332472 gthe acceleration of gravity is 98 ms2what is the minimum current in the
q1 three equal point charges each with a charge of 190 mu c are placed at the corners of an equilateral triangle whose sides have the length of 0470
q1 a projectile is fired at an upward angle of 45 from the top of a 227 m cliff with the speed of 160 ms what will be its speed while it strikes the
q1 a lighthouse that rises 49 above the surface of water sits on a rocky cliff that extends 19 from its base a sailor on the deck of a ship sights
q1 the potential at location a is 419 v a positively charged particle is released there from rest and arrives at location b with the speed vb the
q1 an iron plate 30 cm thick is magnetized to saturation in a direction parallel to the surfaces of the plate a 20 gev muon moving perpendicular to
q1 a 905 kg projectile is fired vertically upward air drag decreases the mechanical energy of the projectile-earth system by 775 kj throughout the
q1 the lines in a grating are uniformly spaced at 1520nm analyse the angular separation of the second order bright fringes between light of
q1 points a and b have electric potentials of 243 v and 129 v respectively when an electron released from rest at point a arrives at point c its
q1 a student stands several meters in front of a smooth reflecting wall holding a board on which a wire is fixed at each end the wire vibrating in