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chuck is playing in a small submarine in his swimming pool he dives his submarine to the bottom of the pool in the
the eyepiece of a compound microscope has a focal length of 310 cm and the objective lens has f 0730 cm calculate the
two stars 19 light-years away are barely resolved by a 165 cm mirror diameter telescope how far apart are the stars
an electron drops from the rm l shell to the rm k shell and gives off an x-ray with a wavelength of 00205 rm nm what is
an aluminum can is filled to the brim with a liquid the can and the liquid are heated so their temperatures change by
1 the definition of health includes a absence of illness b physical fitness c mental and social well-being d all of the
one january morning a warm chinook wind rapidly raised the temperature in spearfish south dakota from below freezing to
two converging lenses one with f 50 cm and the other with f 50 cm are made into a telescopea what are the
using a wheel and axle machine a force of 100 n applied to the rim of a wheel can lift a load of 80 kg the diameters
when the wavelength of an incident radiation exceeds 560nm the emission of photoelectrons from a surface ceaseswhat is
determine the change in gravitational potential energy of a 70-kg skier-earth system when the skier goes down this
a muon formed high in earths atmosphere travels at speed v 092c for a distance of 43 km before it decays into an
a guitar string is 900cm long and has a mass of 317 g from the bridge to the support post l is 600cm and the string is
if neutrons were in thermal equilibrium at temp of 300k what is there average kinetic energy what is the de broglie
the rain-soaked shoes of a person may explode if ground current from nearby lightning vaporizes the water the sudden
find the magnetic field generated 50 cm above a single 25 cm long segment of copper wire carrying a current of 30 a
the excess internal energy of metabolism is exhausted through a variety of channels such as through radiation and
a 70 kg painter holding a 15 kg paint is climbing up a 30 m-long ladder which weighs 20 kg against a frictionless wall
you are entered into a bicycle race on a circular at track with a radius of 398 m you get set at the starting line and
the angular velocity of a 755-g wheel 150 cm in diameter is given by the equation omegat 200 rads2t 100 rads4t3a
two 325muf capacitors are connected in series across the terminals of a 500-hz ac generator that has a peak voltage of
a mass attached to a spring vibrates 15 times in 2313 seconds what is the linear frequency in hertz of the
an oil tanker has collided with a smaller vessel resulting in an oil spill in a large calm-water bay of the ocean you
a light bulb is rated at 60w 120 v what isa the resistance of the bulbb the current through the bulb when connected to
in a x-ray tube electrons are accelerated through a potential of 10 000va how much energy does the accelerated electron