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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
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
charles drags a box of mass 70kg across a floor at constant speed using a massless horizontal rope the coeffiecent of
as a space shuttle moves through the dilute ionized gas ofearths ionosphere the shuttles potential is typically changed
1 in any collision if we find that momentum is not conserved it must mean thata the digital video camera used to record
suppose the space shuttle is in orbit 320km from the earths surface and circles the earth about once every909 minutes
a certain wire has a resistance of 140 omega what is the resistance of a second wire made of the same material that is