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the entrance to a large lecture room consists of two side-by-side doors one hinged on the right and the other hinged
you find that it takes a horizontal force of 160 newton to slide a box along the surface of a level floor at constant
if it requires 50 joule of work to stretch a particular spring by 20 centimeter from its equilibrium length compute how
given a hollow conducting sphere of radius r and surface charge density sigmaa find the potential at a distance greater
there are three charges of 5 5 and -5 micro coulomb at the corners of triangle 10 centimeter in length of each side at
a 50000 kilogram railroad car moving at 40 ms overtakes and couples with a second car of mass 60000 kilogram that is
two masses of 50 kilogram and 10 kilogram are connected by a compressed spring and rest on a frictionless table the
a 75 kilogram astronaut is space walking outside the space shuttle and pushes a 400 kilogram satellite away from the
a horizontal force of 109 newton pushes an 8 kilogram block up a frictionless incline that creates an angle of 23
a 05 kilogram rubber ball is dropped from a height of 30 meter above a hard concrete floor after striking the floor the
a 93 kilogram astronaut and a 1400 kilogram satellite are at rest relative to the space shuttle the astronaut pushes on
a pitcher pitches a baseball of mass 020 kilogram the baseball arrives at home plate with a speed of 40 ms and is
determine the constant-pressure thermal expansively beta and the isothermal compressibility kappa of an ideal
a series lcr circuit has values r10 ohm c55 muf and l120mha determine the total impedance at 50 hzb determine the total
an explorer is caught in a whiteout in which the snowfall is so thick that the ground cannot be distinguished from the
a 95 kilogram monkey is hanging by one arm from a branch and is swinging on a vertical circle as an approximation
a 500 watt heating coil designed to operate from 110 volt is made of nichrome wire 0200 millimeter in diametera suppose
a 0013 kilogram ball is shot from the plunger of a pinball machine because of a centripetal force of 0027 newton the
an airplane is heading due south at a speed of 600 kmh if a wind begins blowing from the southwest at a speed of 100kmh
a sledge loaded with bricks has a total mass of 174 kilogram and is pulled at fix speed by a rope inclined at 202
an electric motor rotating a workshop grinding wheel at a rate of 98 revmin is switched off suppose the wheel has a
a boeing 747 jumbo jet with a wingspan of 77 meter is flying in an area where the earths b-field is 0050 mt given that
a uniform magnetic field of 100 mt passes through a loop of wire having an area of 0039 m2 the field makes an angle of
the speed of a wave on a string is 30 ms the string is 30 meter long and fixed at both ends find the lowest resonant
a hobby rocket reaches a height of 684 meter and lands 225 meter from the launch point find what was the angle of