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a ray of light is incident on a flat surface of a block of gallium phosphide that is surrounded by water the angle of
white light is incident on a diffraction grating the interference pattern is projected on a screen what appears at the
two stars that are close together are photographed through a telescope using black and white film the black and white
a platinum sphere with radius 00181 m is totally immersed in mercury find the weight of the sphere the buoyant force
please write no less than one sentence for each question explain how electric currents produce magnetic fields and the
three resistors 182 omega 221 omega 115 omega are connected in parallel across 88 v what is the total resistance for
a battery with e m f 860 v and no internal resistance supplies current to the circuit shown in the figure below when
sir lost-a-lot dons his armor and sets out from the castle on his trusty steed in his quest to improve communication
a ray of light in air with a wavelength of 400 nm is incident on a liquid with an index of refraction of 14 the ray of
1 a small electric device has a resistance of 15 ohms when the current in it is 05 amperes calculate the voltage
1 a battery supplies 8 amps of current to a circuit at 24 volts what is the resistance in the circuit2 a television
a bullet of mass 5g is moving with speed 800 msit hits a log of wood initially at rest of mass 995 g and gets stuck in
of the atoms a scandium sc b calcium ca and c lithium li one tends to lose three electrons another tends to lose two
you drink a small glass of water that is 999999pure water and 00001 some poison assume the glass contains about a
find what the quantity of heat is needed to raise the temperature of a 15-kgpiece of steel from 0cto 90c the specific
monochromatic light with a wavelength of 500 nm is incident on two slits separated by a distance of 02 mm a diffraction
two metal rods with the same geometry but made of different metals are welded togather the thermal conductivities are
in a fit a toddler throws straight down his favorite 15nbspkg toy with an initial velocity of 29 ms what is the
1 a nail gun fires a nail into a piece of wood the nail is going a velocity of 68 msright before entering the wood the
a 550-turn solenoid 19 cm long has a diameter of 28 cm a 20-turn coil is wound tightly around the center of the
a solenoid of radius 10 m with 800 turns and a length of 49 m surrounds a pigeon cage part a what current must be in
a 488 hz sound wave travels through a substance the wavelength of the sound wave is measured to be 29 meters what is
an iron tower in is 381 meters tall on a cold day t -61 degrees celsius what is thenbspfinalnbspheightnbsptotalnbspof
an iron tower in is 324 meters tall on a cold day t -69 degrees celsius what is the final height totalof the tower on
a bungee cord is stretched between two poles with a force of 373 n the length of the cord is 33 meters and it has a