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a piece of iron wire of mass 2225g was put into a conical flask containing dilute sulphuric acid the flask was fitted
an air conditioner draws 12 a at 220 v ac the connecting cord is copper wire with a diameter of 1450 mma how much power
you have two 120v light bulbs one 25w and one 100w that are normally connected in parallel with 120v across each your
a textile finishing process involves drying a fabric that has been treated with a volatile solvent the wet fabric
light with a frequency of 2 x 1015 hz shines on a copper surface 470 ev what is the maximum kinetic energy of the
how much heat in kj is required to warm 130 c of ice initially at -150 c to steam at 1130 c the heat capacity of ice
the peak value of an alternating current in a 1480 w device is 44 a what is the rms voltage across
at a certain location earths magnetic field of 53 microt is horizontal and directed due north suppose the net field is
serotonin composed of c h n and o facilitates neuronal communication the molar mass of serotonin is 17600 gmol by
highly excited atoms have electrons with large principal quantum numbers such rydberg atoms have unique properties and
consider a sealed flask with a moveable piston that contains 525l of o2 saturated water vapor at 25o c the vapor
a circular coil enclosing an area of 180 cm2 is made of 210 turns of copper wire the wire making up the coil has
an aqueous solution of sucrose c12h22o11 boils at 112 degrees celcius what is the
a boy and a girl are balanced on a massless seesaw the boy has a mass of 75 kg and the girls mass is 50 kg if the boy
how many grams of ammonium chloride are formed when 46 grams of calcium chloride react with 64 grams of ammonium
a 200-turn rectangular coil having dimensions of 30 cm by 50 cm placed in a uniform magnetic field of magnitude 090ta
what is an element with seven electrons in the outer orbit called metal halogen metalloid noble gas none of the
a transparent oil with index of refraction 129 spills on the surface of water index of refraction 133 producing a
a solution of ethylene glycol and water has a boiling point of 1098 degrees celcius what is the freezing point kf
soap bubble n 140 having a wall thickness of 130 nm is floating in aira what is the wavelength of the visible light
how do you rank crystal lattice structures in order of decreasing efficiency of space in the
in a youngs double-slit experiment a set of parallel slits with a separation of 0102 mm is illuminated by light having
the ideal gas law relates the pressure p volume v absolute temperature t and amount of gas n the law is p nrtv where r
a solenoid of radius 16 cm has 351 turns and a length of 10 cmthe permeability of a free space is 125664 times 106 v
given 1000ml of a buffer that is 050 m in hocl and 040 m in naocl what is the ph after 100ml of 10 m naoh has been