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the temperature of the surface of the sun is 6000k and its radius is 696000km how much energy is the sun radiating into
the helium ion he has energy levels similar to those of hydrogen and are given by the equation en -524816n2 kjmolea
an electric point of 6 mill- coulomb is placed in the center of a metallic spherical shell of inner diameter 15 cm and
assume that 22 million metric tons of adipic acid will be synthesized yearly by industrial nitric acid oxidation and
the electrons in a rigid box emit photons of wavelength 1484 nm during the transitiona what kind of photons are
each mole of cyclohexene reacts with four moles of h2o2 to give adipic acid you added about 36 grams of h2o2 to your
air in a diesel engine cylinder is quickly compressed from an initial temperature of 20 degc an initial pressure of 1
before embarking on a car trip from michigan to florida to escape the winter cold you inflate the tires of your car to
a student weighed a copper wire sample that was considerably larger than the size recommended in the procedure the
a charge of 80nc is uniformly distributed along the x axis from x 0 to x 20 m determine the magnitude of the electric
calculate the molarity of a solution made by dissolving 0680 grams of na2so4 in enough water to form exactly 920 ml of
the sun is approximately a sphere of radius 6963 105 km at a mean distance a 1496 108 km from the earth the solar
a 112-kg aluminum pot contains 225 l of water both pot and water are initially at 191 degc how much heat must flow into
you are going to lift an elephant mass 26 103 kg over your head 19 m vertical displacementa calculate the work
in the following exoergic nuclear reaction12d 13t 01n 24hewhat percentage of the initial mass is converted into
a ladder 58 m long leans against a wall inside a spaceship from the point of view of a person on the ship the base of
a tv remote control emits ir light if the detector on the tv set is not to react to visible light could it make use of
what is the speed of a beam of pions if their average lifetime is measured to be 440 x 10-8 s at rest their lifetime is
a supertrain of proper length 205 m travels at a speed of 087c as it passes through a tunnel having proper length 74 m
the resolution of the eye is ultimately limited by the pupil diameter what is the smallest diameter spot the eye can
the headlights of a pickup truck are 133 m apart what is the greatest distance at which these headlights can be
white light 380nm-750nm strikes a diffraction grating 770 linesmm at normal incidence what is the highest-order visible
the diffraction pattern shown in the figure is produced by passing laser light 620 nm through a single slit and
a white light beam shines directly on a very thin oil film that floats on water where the incident beam normal to the
an underground explosion sends out both transverse s waves and longitudinal p waves mechanical wave pulses seismic