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a long straight wire is carrying a current of 24 a in a region where the magnetic field is perpendicular to the wire if
a capacitor is connected in series with a resistor and a switch with the switch open the capacitor is charged to 90 v
a 860-muf capacitor is connected to a generator operating at a low frequency the rms voltage of the generator is 460 v
a steel ball is fastened to a cord and is released from rest when the string is horizontal at the bottom of its path
particles p and q areinitially at rest 10 m apart p has a mass of010 kg and q a mass of 030kg p and q attract eachother
a speeder is pulling directly away and increasing his distance from a police car that is moving at 260 ms with respect
a container is filled with water to a depth of 483 cm on top ofthe water floats a 244 cm thick layer of oil with a
when a resistor is connected across the terminals of an acgenerator 112 v that has a fixed frequency there is a current
a man pushes a lawn mower on a level lawn with a force of 212n if 52 of this is directed downward how much work is done
a 022-kg ball on a stick is whirled on a vertical circle at aconstant speed when the ball is at the three
nbspat amusement parks there is a popular ride where the floor of arotating cylindrical room falls away leaving the
a particle of mass m in an infinite well has its initial wavefunction psi x0 apsi1x psi3x where psi1x and psi3x are
an ideal gas expands at a constant total pressure of 30 atm from 400 ml to 600 ml heat then flows out of the gas at a
a mass of 25 kg is suspended from the end of aspring the other end of the spring is attached to the ceiling
given a series circuit of a 24 volt dc power supply a switch a 47 komega resistor and two 100 muf capacitors in
a radiation detector is in the form of a circular disc of diameter30 cm it is held 25cm from a source of radiation
a coal-fired power station burns coal with 30 moisture contentthe composition of the dried sample is found to contain
1 give the formula for the covariance between two random variables and if and area discrete nbspb continuous2 let z be
on sept 8 2004 the genesis spacecraft crashed because the parachutedid not open the 210kg capsule hit the ground at
you have a convex lens of focal length 3cm and na06 light diffracts from two pinholes separated by a distance d what is
an 80-cm-long wire is made by welding a 12 mm-diameter 20-cm-long copper wire to a12 mm-diameter 60-cm-long iron wire
a 12-kg block is held against a spring of force constant 10 x104 nm compressing it a distance of 015 m how fastis the
equak amounts of heat are added to equal masses of iron and silver at the same initial temperaturea which metal will
a 51kg packing crate is pulled with constant speed across a rough floor with a rope that is at an angle of 435o above
an electric motor is plugged into a wall socket and is running at normal speed suddenly some dirt prevents the shaft of