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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
an inductor l 400 mh a capacitor c 443 microf and a resistor r 500 are connected in series a 540-hz ac generator
an extreme skier starting from rest coasts down a mountain that makes an angle 250deg with the horizontal the
a 700 x 104 kg space probe is traveling at a speed of 14000 ms through deep space retrorockets are fired along the line
you look at the center of one face of a solid cube of glass on a line of sight that makes a 55deg angle with the normal
a beam of light traveling in a block of glass n160 is incident on the top surface at an angle of 55deg with respect to
a point source of light is 400 cm below the surface of a swimming pool for water n1333 find the diameter of the largest
a beam of light has a wavelength of 500 nm in vacuum the light enters a piece of glass with index of refraction 160
a 7320 kg satellite has an elliptical orbit the point on the orbit that is farthest from the earth is called the apogee
a coil has an inductance of 005 h and a resistance of 52 o the coil is connected to a 60-v battery after a long time
a particle is located at r41i31j56km a force f95j-35kn acts on itwhat is the torque calculated about the
a roller coaster descends 35 meters in its initial drop and then rises 23 meters before going over the first hill if a
assume that a certain location on the earth reflects 310 of the incident sunlight from its clouds and surfacea if the
a uniform stick 15 m long with a total mass of 300g is pivoted at its center a 35-g bullet is shot through the stick
a galaxy located at a distance d of 1 million light years away has an angular size a 5 degree what is the approximate