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a radio station with a power of 16kw sends out an omnidirectional wave at 21mhza if the electromagnetic wave has an
a 5070 ml of sample of caoh2 solution is titrated with 01188 m hcl what is the molarity of the calcium hydroxide
x rays diffract from a crystal in which the spacing between atomic planes is 0179nm the second-order diffraction occurs
when sodium chloride is strongly heated in a flame the flame takes on the yellow color associated with the emission
specify what ions are present in solution upon dissolving each of the following substances in water
an opaque cylindrical tank with an open top has a diameter of 3 meters and is completely full of water when the
the daily dose of ampicillin for the treatment of an ear infection is 115mgkg of body weight what is the daily for a 34
an inductor of 491 mh with a resistance of 47 is connected to a power supply with a maximum voltage of 135 v and a
if a 0135 g sample of nacl were placed on an ion exchange column in the h form and the eluate titrated with 01231 m
how much heat in kj is needed to convert 853 g of ice at -30degc to steam at 131degc the specific heat capacities of
jills camera can photograph objects sharply 24 cm away but not closer find the focal length of the jills lens if the
suppose the resistance between the hands is due entirely to the skin if the patch of skin is 05cm by 05cm in area and
a 330 g air track on a horizontal air trek is attached to a string that goes over a pulley with a moment of inertia of
you are flying to new york youve been reading the in-flight magazine which has an article about the physics of flying
a 330 g air track cart on a horizontal air track is attatched to a string that goes over a pulley with a moment of
a woman stands at the center of a platform the woman and the platform rotate with an angular speed of 520 rads friction
you are standing on a sheet of ice that covers the football stadium parking lot in buffalo there is negligible friction
a 20 meter long string that has a mass of 240 grams is under 45 n of tension a sinusoidal wave with an amplitude of 40
two converging lenses having focal lengths of f1 105 cm and f2 200 cm are placed d 500 cm apart the final image is
a spool whose inner core has a radius of 100 cm and whose end caps have a radius of 150 cm has a tightly wound inner
a spool whose inner core has a radius of 100 cm and whose end caps have a radius of 150 cm has a string tightly wind
two parallel planar mirrors face each other an object is placed between them at a distance x from one and 3x from the
a 6x10-6 f capacitor is initially charged to 100v then is connected across a 500ohm resistora what is the initial
three charged particles are placed at each of three corners of an equilateral triangle whose sides are of length 40 cm
a series rlc circuit contains a 1250 o resistor a 350 microf capacitor and a 700 mh inductor the circuit is attached to