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a 470 g golf ball is driven from the tee with an initial speed of 520 ms and rises to a height of 238 m neglect air
an automobile weighing 180times104 n is moving with an initial speed of 640 kmhr along a flat highway when the brakes
an experiment is performed in deep space with two uniform spheres one with mass 220 kg and the other with mass 1080 kg
a 700 kg girl lowers herself to the ground from a height of 88 m by holding onto a rope running over a pulley to a 540
a 710 kg skier is pulled up a frictionless ski slope that makes an angle of 150 deg with respect to the horizontal by
a plane is flying horizontally with speed 158 ms at a height 5810 m above the ground when a package is dropped from the
an inductor l 400 mh a capacitor c 443 microf and a resistor r 500 are connected in series a 540-hz ac generator
a singly charged positive ion has a mass of 216 times 10-26 kg after being accelerated through a potential difierence
a block of weight 45 n is at rest on a horizontal table an upward vertical force of 22 n is applied to the block by
at the equator near earths surface the magnetic eld is approximately 645 microt northward and the electric eld is about
the critical angle for a certain liquid-air surface is 438 degrees what is the index of refraction of the
a proton travels with a speed of 29times106 ms at an angle 44 degrees with a magnetic eld of 099 t pointed in the y
a beam of light in air strikes a slab of glass n 156 and is partially reflected and partially refracted find the angle
a 570 kg skateboarder starts out with a speed of 170 ms he does 800 j of work on himself by pushing with his feet
you drop a stone down a well thats 95m deep how long until you hear the splash assume the speed of sound in air is
you are trying to lose weight by working out on a rowing machine each time you pull the rowing bar which simulates the
a skier starts from rest at the top of a hill the skier coasts down the hill and up a second hill as the drawing
a roller coaster 370 kg moves from a 500 m above the ground to b 250 m above the ground two nonconservative forces are
a system consisting entirely of electrons and protons has a net charge of 171times1015 c and a net mass of 476times1023
ferris wheel has radius 50 and makes one revolution in 80 seconds a person weighing 670 is sitting on one of the
a parallel-plate capacitor is charged to an electric potential of 285 v by moving 320times1016 electrons from one plate
a step-down transformer is used for recharging the batteries of portable devices the turns ratio n2n1 for a particular
a 450 resistor a 0100 h inductor and a 100 acircmicrof capacitor are connected in series to a 600 hz source the rms
write balanced net equations for the redox reactions that could occur when the following are mixed a ag1 and cu b cr2o7