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in this problem the question tells us that there are two springs connected to each other and that the spring constant
a laser beam having 652 nm wavelength and 10microns width is fired at a very thin steel plate which has twoslits in it
a 60-uf air capacitor is connected across a 100-v battery afterthe battery fully charges the capacitor the capacitor is
a styrofoam ball of mass 0120 g is placed in an electric field of6000 nc pointing downward what charge must be placed
four point charges have the same magnitude of 219 10-12 c and are fixed to the corners of asquare that is 420 cm on a
a non-conductor sphere of radius a has a negative chargedistribution given by the function p -c r2 where cis a
bats emit sounds of frequencies around 350 khz and useecholocation to find their prey if a bat is moving at the speed
an object weighing 305 n in air is immersed in water after beingtied to a string connected to a balance the scale now
a horizontal pipe 1500 cm in diameterhas a smooth reduction to a pipe 750cm in diameter if the pressure of the water in
a 90 kg mess kit sliding on africtionless surface explodes into two 45kg parts one moving at 60 ms duenorth and the
a motion sensor and a force sensor record themotion of a cart along a track as shown above the cart is given apush so
a 1650 kg cannon which firesa 750 kg shell with a speedof 544 ms relative to themuzzle is set at an elevation angle of
what is the difference between series and parallel circuits specify in words and algebraic formula if possible the
a piece of ice of mass 00240 kg at an initial temperature of-110o c is placed in a well-insulated cup containing0100 kg
1 which one of the following statements is correct concerning ahydraulic lifta in a hydraulic lift a small forceapplied
a small object of mass 190times10minus2 kg andcharge 32 muc hangs from the ceiling by a thread asecond small object
a sphere of radius 412 cm and uniform surface charge density116mucm2 exerts an electrostatic force ofmagnitude
a tree is approximated as a 60m tall cylinder with a diameter of 3ma what is the weight of the tree using p as the
three 30 uc charges are at the three corners of an square of side050 m the last corner is occupied by a -30 uc charge
two point-source loudspeakers are a certain distance apart and a person stands 120 m in front of one of them on a line
how fast in kilometers per hour must a sound source be moving toward you to make the observed frequency 50 greater than
sound propagating through air at 30oc passes through avertical cold front into air that is 40oc if the soundhas a
when 21 mol of oxygen o2gas is heated at constant pressure starting at 0degc how muchenergy must be added to the gas as
a large storage tank open at the top and filled with waterdevelops a small hole in its side at a point 154 m below the
through a pipe 170 cm in diameterwater is pumped from the colorado river up to grand canyon villagelocated on the rim