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consider a gas of neutrons in a nuclear reactor the neutron density is 108 neutronscm3 in an operating reactor which
a 980 cm pendulum is released from a small angle after 124 oscillations the amplitude is one half of its original value
calculate the semimajor of a moon on a synchronous orbit around mars express your answer in martian radii rmars from
astronauts on a distant planet set up a simple pendulum of length 12 m the pendulum executes simple harmonic motion and
a spring is compressed by 00592 m and is used to launch an object horizontally with a speed of 321 ms if the object
an object attached to a horizontal spring is oscillating back and forth along a frictionless surface the maximum speed
a uniform 17-kg rod that is 093 m long is suspended at rest from the ceiling by two springs one at each end both
determine the wavelength of light emitted when a hydrogen atom makes a transition from the n 13 to the n 3 energy
in a room that is 235 m high a spring unstrained length 022 m hangs from the ceiling a board whose length is 197 m is
a surface whose work function is 28 ev is illuminated by a light whose wavelength is 116 nm what is the maximum
a blood vessel of radius r splits into four vessels each wit radius r3 if the average velocity in the larger vessel is
a spring is hanging from the ceiling attaching a 560 g mass to the spring causes it to stretch 220 cm in order to come
the energy released by nuclear bombs is measured in kiloton kt or megaton mt units one kiloton is a unit of energy
the leaves of a tree lose water to the atmosphere via the process of transpiration a particular tree loses water at the
an engine absorbs 172 kj from a hot reservoir at 277degc and expels 115 kj to a cold reservoir at 27degc in each cyclea
the initial velocity of a car is vi45kmhr in the positive x-direction the final velocity of the car vf is 66kmhr in a
zinc carbonate hydroxide contains 5955 zinc by mass calculate the molecular weight molar mass of zinc carbonate
green light 546 nm strikes a single slit at normal incidence what width slit will produce a central maximum that is
monochromatic light of wavelength 430 nm is incident on a soap bubble of index 157 what is the wavelength of the light
an unknown compound containing only carbon and hydrogen was burned in excess oxygen when 7714 grams of the compound was
what mass of cu and of n in grams are contained in 2507 g of sample that is 754 pure cuno32 by mass assume that the
an airplane has a mass of 17x106kg and the air flows past the lower surface of the wings at 96 ms if the wings have a
an ideal monatomic gas expands isothermally from 0590 m3 to 125 m3 at a constant temperature of 690 k if the initial
for my project i constructed a trebuche a trebuche is an ancient device used for launching projectiles it acheives this
a heat engine operates in a carnot cycle between 900degc and 360degc it absorbs 20400 j of energy per cycle from the