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a fighter aircraft is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult
a generating station is producing 120 x 106 w of power that is to be sent to a town placed 80 kilometer away each of
an explosion breaks an object initially at rest into two pieces one of which has 18 times the mass of the other if 7500
a mass hanging from a spring can oscillate in the vertical direction or can swing as a pendulum of small amplitude
a 12 gram bullet is fired into a 100 gram wooden block initially at rest on a horizontal surface after impact the block
a 15 kilogram block is at rest on a horizontal frictionless surface the block is attached to a spring that is itself
a cycle wheel is rotating at 47rpmnbspnbspwhen the cyclist begins to pedal harder giving the wheel a constant angular
a 750 kilogram sky surfer is falling straight down with terminal speed 600 ms find the rate at which sky surfer-earth
what magnitude force is needed to give a helicopter of mass m an acceleration of 010 g upward b what work is done by
a car speeds up as it turns from traveling due south to heading due east when exactly halfway around the curve the cars
in an experiment with a helium-neon laser which has a wavelength of 6328 nm you illuminate a single slit that is
the variable capacitor in the tuner of an am radio has a capacitance of 3500 pf when the radio is tuned to a station at
two resistors r1100 omega and r2200 omega are connected in parallel across a battery the current through r1 is 0150
a tetherball on a 17 meter rope is struck thus that it goes into a circular motion in a horizontal plane with the rope
a 940 kilogram rock is whirled around in a horizontal circle at the end of a 13 meter long stringa if the breaking
a woman walks for 4 minute directly north with an average velocity of 6kmh then she walks eastward at 4 kmh for 10
a light rod 100 meter in length rotates about an axis perpendicular to its length and passing through its center two
a point source of electromagnetic radiation has an average power output of 800 w1 compute the value of the energy
a room with walls that pass heat at a rate of bt outside ndash t inside is cooled with an air conditioner that has half
a converging lens f250cm is utilized to project an image of an object onto a screen the object and the screen are 125cm
a model rocket is constructed with a motor that can provide a total impulse of 290 ns the mass of the rocket is 0175
the fundamental frequencies from a guitar string and a 440 hertz tuning fork give three beats per sec slightly
monochromatic light lambda 570 nm passes during two slits and onto a screen 40 m awaya if two nearby bright fringes