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in fluorescence microscopy an important tool in biology a laser beam is absorbed by target molecules in a sample these
two incoherent em waves of intensities 8i0 and 13i0 travel in the same direction in the same region of space what is
a monster truck has tires with a diameter of 110 m and is traveling at 324 ms after the brakes are applied the truck
in an early test of sound propagation through the ocean an underwater explosion of 1 pound of dynamite in the bahamas
a discus thrower with arm length of 12 m starts from rest and begins to rotate counterclockwise with an angular
the particles in the figure below m1 18 kg and m2 35 kg undergo an elastic collision in one dimension their
a solution is prepared with 385 g of an unknown compound in 1000 g cyclohexane the solution had a freezing point of 418
a rainbow trout is an extremely cautious fish constantly monitoring the surface of the stream looking for both food and
how many milliliters of a 0150 m magnesium hydroxide solution are needed to neutralize 1282 l of hydrochloric acid
consider x-rays scattered off of carbon atomsa at what angle are the photons scattered such that the electronrsquos
a constant force of 200n pulls a 30kg box up a ramp 15m long and 4m high if it starts from rest and achieves a speed of
how could you determine without tasting whether a container of a colorless liquid contained ethanol or ethanol and
spider silk has a youngs modulus of 40x109 nm2 and can withstand stresses up to 14x109 nm2 a single web strand has a
a photon with wavelength lambda is completely absorbed by a particle traveling at 05c in a head-on collision after the
the mass percent of an element in a compound is the mass of the element total mass of the elements atoms in the
in the figure a french submarine and a us submarine move toward each other during maneuvers in motionless water in the
a large cylinder of helium filled at 2000 lbin2 had a small orifice through which helium escaped into a space at the
the variable capacitor in the tuner of an am radio has a capacitance of 2820pf when the radio is tuned to a station at
a bound quantum system has a complete set of orthonormal no-degenerate energy eigenfunctions usubscript n with
a very short solenoid contains n 20 circular loops of wire the radius of the loop is r 05 meters and the length of
the constant-pressure heat capacity of a sample of a perfect gas was found to vary with temperature according to the
on a dry day your body can accumulate static charge from walking across a carpet or from brushing your hair if your
the tungsten filament of a certain 100 w light bulb radiates 250 w of light the other 975 w is carried away by
a boat came to rest at the surface of the ocean before it started to sink due to the resistance of the seawater the
the vapor pressure of water at 25 is 2376 if 110 of water is enclosed in a 20 containerthere will be liquid persent