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three objects are connected on an inclined table as shown in the diagram below the objects have masses 80 kg 40 kg and
a car drives north for 1km then it turns and drives 2 km at 30 degrees south of west finally the driver turns again and
two people are running towards each other they start from rest 100 m apart the person on the left can accelerate at 02
a metal sphere of radius 13 cm has a net charge of 28 x10ndash8 c a what is the electricfield at the spheres surface b
a 02 m3tank equipped with a pressure regulator contains 4 kg saturated mixture of water at 2 mpa the steam is now
a steam turbine is used to test a well insulated air compressor the inlet temperature and pressure of the turbine are 5
two capacitors are identical except that one is empty and the other is filled with a dielectric kappa 450nbsp the
an air source heat pump with a heating cop of 4 is used to heat a house the input rating of the heat pump is 33
two large parallel metal plates carry opposite charges they areseparated by 01 m and the potential difference between
suppose you form a dipole from two point charges with a magnitude of charge q the postive charge is located at the
a particle moves so that its position as a function of time is rt i hat 4t 2 j hat tk hatawrite expressions for its
two runners approaching each other on a straight track haveconstant speeds of 450ms and 350ms respectively whenthey are
a 600kg skier traveling at 200ms reaches the foot of a steady upward 200 degree incline and glides 350m along this
in a certain organic molecule the nuclei of two carbon atoms areseparated by a distance of 035 rm nmwhat is the
a bullet of mass 12 grams is fired into a large block of mass 15 kg suspended from light vertical wires the bullet
in a local bar a customer slides an empty beer mug down the counter for a refill the height of the counter is h the mug
gary rides on a ferris wheel that takes 100 s to go once around the radius of the wheel is 120 ma what is garys
a child complains that her 160 g of milk is too hot at 90 degree c she then pour 80 g of cold milk at 7 degree c in it
a moving particle encounters an external electric field that decreases its kinetic energy from 9520 ev to 7060 ev as
one container is filled with helium gas and another with argon gas both containers are at the same temperature which
if the temperature of an ideal gas is doubled while its pressure is tripled by what factor does its volume
a block of wood is placed on a frictionless horizontal surface and a 700 g bullet is fired from a gun into the 100-kg
the plot below shows the acceleration of a mouse in a long straight burrow as a function of time the velocity and the
you are using a magnifying glass held against your eye to study an insect the distance between the insect and your
a uniform disk has a mass of 46 kg and a radius of 02 m the disk is mounted on frictionless bearings and is used as a