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the star sirius has a surface temperature of 9750 k and aradius 24 times larger than the sunsa what is the ratio of the
an object with mass 26kg is attached to a spring with spring stiffness constant 260nm and is executing simple harmonic
a 900 kg sign hangs unevenly between 2 beams on the right hand side the angle between the horizontal and the cable is
a very long uniform line of charge has charge per unit length 480x10-6 and lies along the x-axisnbsp a second long
a small fly of mass 027g is caught in a spiders web the web vibrates predominately with a frequency of 32hzpart a what
an experiment youre designing needs a gas with 160 you recall from your physics class that no individual gas has this
baseball and the washington monument on august 25 1894 chicago catcher william schriver caught a baseball thrown from
a metal sphere of radius 14 cm has a net charge of 38 x10ndash8 ca what is the electric field at the spheressurfaceb if
suppose 400 g of hydrogen is separatedinto electrons and protons suppose also the protons are placed atthe earths north
in a discussion person a is talking 19 db louder than person band person c is talking 30 db louder than person a what
a 50 newton horizontal force pushes a 10 kg mass sitting on a horizontal surface additionally the horizontal surface
some planetary scientists have suggested that the planet mars has an electric somewhat similar to that of the earth
the atwood machine consists of two masses suspended form a fixed pulley if the first mass is 055kg and 08kga what is
for an electromagnetic wave with maximum electric field of 1400vm and wavelength of 490nm what is the maximum magnetic
a block of mass 050kg travels with a speed of 2ms in the x-direction on a flat frictionless surface on passing through
a speedboat starts from rest and accelerates at191 ms2 for 700 s at the end of this time the boat continues for an
the pendulum on a small grandfather s clock is used to regulate how fast the clock ticks the physical pendulum is
a 31 micro coulomb charge hangs from a string midway between two sheets and makes an angle of 10 degrees with the
a bicyclist makes a trip that consists of three parts each inthe same direction due north along a straight road during
a vertical concrete dam is built in the ravine between two hills the face of the dam slopes equally on both sides at an
a mass hanging at rest froma spring stretches the spring by 400 cm the mass is thenpulled down until the spring is
a sprinter explodes out of the starting block with an acceleration of214 ms2 which she sustains for 126 sthen her
the new england merchants bank building in boston is 152m high on windy days it sways with a frequency of 020hz and
a baseball is hit at an angle of 275 degrees and just clears the right field fence 87 meters away what was the overall
an 271 n object is moving to right when forces act on it two forces act in y direction up 32 n and 17 n one force acts