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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
the drawing shows two situations in which charges are placed on the x and y axes they are all located at the same
a pulley is attached to the ceiling as shown in the figurebelow spring scale a is attached to the wall and a rope
the electric potential at the surface of a conductingspherical shell of radius r is v gt 0 relative to earth groundtrue