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find the electric energy density between the plates of a 225 muf parallel-plate capacitor the potentialdifference
a 13 kg child on a playground swing moveswith a speed of 29 ms when the 60 mlong swing is at its lowest point what is
two electrons in the atom are seperated by 15x10-10 m the typical size of an atom what is the electric force between
a 302 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force f143 n at an angle
a 60-kg bungee jumper has fallen far enough that her bungee cord is beginning to stretch and resist herdownward motion
a ball player hits a home runand the baseball just clears a wall 800 m high located1240 m from home plate the ball is
a boxer stops a punch with his head to approximate the force of the blow treat the opponents glove hand and forearm as
the earths average distance from the sun is 150 x1011 m at this distance the intensity ofradiation from the sun is 138
a horizontal meter stick 100 cm long supported at the50-centimeter mark has a mass of 500 grams hanging from it at
a river flows due east at 120 ms aboat crosses the river from the south shore to the north shore by maintaining a
1 what is the acceleration of a cart that has a mass of 50 g if it is beingpulled by mass of 90 g that is dropped off a
two 12 kg blocks are fastened to the ceiling of an elevator asin figure p 415 the elevator accelerates upward at 300
a 1000 kg boat moves through the water with two forces actingon it one is a 3000 n forward push by the water on the
a special electronic sensor is embedded in the seat of a car that takes riders around a circular loop-the-loop at an
a 50 g bullet leaves the muzzle of a riffle with a speedof 320 ms what force assumed constant is exerted on the
two newly discovered planets follow circular orbits around a starin a distant part of the galaxy the orbital speeds of
a 10-lb block is attached to an unstretched spring of constant k 12 lbin the coefficients of static and kinetic
the 11-kg block a and the 5-kg block b are both at a height h 2 m above the ground when the system is released from
three resistors with values of 40 omega70 omega and13 omega areconnected in series in a circuit with a 65 vbatterya
a cylinder containing an ideal gas has a volume of 20m3 and a pressure of 10105 pa at a tempof 300 k the cylinder is
block m70n and block m35n are connected by a string as shown if the pulley is massless and the surface is frictionless
when you insert a sheet of wood kappa 200between the plates of a capacitor the capacitance becomes240 nf what
the plates of a capacitor are separated by 00050 m the capacitor is charged by a potential difference of 50 v and then
a proton and an electron are moving due east in a constant electricfield that also points due east the electric field
a gold brick is transported from earth to the moon which ofthe following statements is truethe mass of the brick will