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a generator of frequency 2500 hz drives a series rlc circuit with an emf amplitude of 120 v the resistance is 41 the
to prevent the presence of air noble gases are placed over highly reactive chemicals to act as inert blanketing gases a
a particular radioactive source produces 125 mrad of 1 mevgamma rays per hour at a distance of 10 ma how long could a
a light bulb emits light uniformly in all directions the averageemitted power is 1500 w at a distance of 4 m from the
a pendulum of length 50 cm is pulled 30 cm away from thevertical axis and released from rest what will be its speed at
a torque of 240 n m is applied to a solid disk accelerating itfrom rest to an angular velocity of 1400 rpm the disk has
a beam of light is emitted in a pool of water from a depth of 620cm where must it strike the air-water interface
calculate the maximum torque that can be applied to the pedals of a bicycle by a rider with a body mass of 740 kg if
a hypodermic syringe has a plunger of area 25 cm2 and a 50 x10-3 cm2 needlea if a 10-n force is applied to the plunger
you need to use your cell phone which broadcasts an 720 mhz signal but youre behind two massiveradio-wave-absorbing
an oak barrel with a lid of area 020 m2 is filled with watera long thin tube of cross-sectional area 50 x 10-5 m2 is
the intensity of sunlight at the top of the earths atmosphereis about 1390 wm2the distance between the sun and earth is
a stream of water strikes a stationary turbine blade horizontallyas the drawing illustrates the incident water stream
the drawing shows a sulfur dioxide molecule it consists of twooxygen atoms and a sulfur atom a sulfur atom is twice as
a solenoid 950 cm long has a cross-sectional area of140 cm2 there are 1050 turns of wire carrying acurrent of 690 aa
a solar collector that can provide 10w of power forcharging the 30v batteries what is the maximum charging current the
a toroidal inductor with an inductance of 870 mh encloses a volume of 00200 m3 if the average energy density in the
a 750 kg bungee jumper tied to a 390 m longcord leaps off a bridge whose deck is 690 m above thewater he falls to 70 m
a 560-muf capacitor is connected to a generator operating at alow frequency the rms voltage of the generator is 400 v
a solenoid is wound with a single layer of insulated copperwire of diameter 2500 mm and has a diameter of 5000cm and is
calculate the heat capacity of a calorimeter if the combustion of 4664 g of benzoic acid led to an increase in
density is mass per unit volume commonly the amount of matter in one cubic centimetre of the material what two
the inductance of a closely wound coil is such that an emf of30 mv is induced when the current changes at the rate of46
a resistor with r 22komega is connected to an ac generator that operates at 60 hzwith an amplitude of 34 va find the
1 a 94 l sample of dry air is cooled from 145degc to -23degc while the pressure is maintained at 285 atm what is the