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a person with a near-point distance of 32 cm is able to get a usable magnification of 12 with a particular magnifying
a vehicle with wheels whose diameter is 36 inches is traveling at a rate of 30 feet per second determine the number of
a wire loop of radius 050 m lies so that an external magnetic field of magnitude 030 t is perpendicular to the loop the
a sphere of radius r starts from rest and rolls without slipping along a curved surface dropping through a vertical
suppose in the drawing that i1 i2 424 a and that the separation between the wires is 00215 m by applying an external
a mass of 20g is attached to a spring and undergoes simple harmonic motion with a period of t07 s the total energy of
a charge q 580 x 10-6 is located at the center of a regular tetrahedron a four sided surfaceamp160 finda the total
an amateur astronomer decides to build a telescope from a discarded pair of eyeglasses one of the lenses has a
a 160 kg mass is attached to a light cord that is wrapped around a pulley of radius 680 cm which turns with negligible
a farsighted woman breaks her current eyeglasses and is using an old pair whose refractive power is 1990 diopters since
a 50 turn square coil has an area 100 cm2 and is rotated with an angular speed of 1900 rads in a uniform 090 t magnetic
for the infinite square well problem an electron spends 40 of its time in the n3 state and 60 of its time in the n5
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
light with a frequency of 2 x 1015 hz shines on a copper surface 470 ev what is the maximum kinetic energy of the
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
a circular coil enclosing an area of 180 cm2 is made of 210 turns of copper wire the wire making up the coil has
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
a 200-turn rectangular coil having dimensions of 30 cm by 50 cm placed in a uniform magnetic field of magnitude 090ta
a transparent oil with index of refraction 129 spills on the surface of water index of refraction 133 producing a
soap bubble n 140 having a wall thickness of 130 nm is floating in aira what is the wavelength of the visible light
in a youngs double-slit experiment a set of parallel slits with a separation of 0102 mm is illuminated by light having
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
a 50 turn square coil has an area 150 cm2 and is rotated with an angular speed of 800 rads in a uniform 040 t magnetic