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a barge is in a rectangular lock on a freshwater river the lock is 600 m long and 200 m wide and the steel doors oneach
a beam of natural light is incident on an air-glass interfacenti15 at 40 degrees compute the degree ofpolarization of
two parallel wires have a current of 22a flowing through each oneof them when the wires are placed 25cm apart the exert
an induced emf of 12v is produced when a 350 loop coil ofradius 42cm is placed perpendicular to a magnetic field and
at one end of a ripple tank 90 cm across a 6 hz vibratorproduces waves whose wavelength is 50 mm find the time the
an undersearesearch chamber is spherical with an external diameter of 600 mthe mass of the chamber when occupied is
an archeologist on a dig finds a fragment of an ancient basketwoven from grass later it is determined that the
a light bulb is rated at 60 w when connected to 120va what current flows through the bulb in this caseb what is the
a certain electric motor draws a current of 10 a whenconnected to 120va what is the motors power consumptionb how much
a sonic depth gauge is placed 5m above the ground anultrasound pulse sent downward reflects off snow depth depends
a 6090 kg space probe moving nose first toward jupiter at 105ms relative to the sun fires its rocket engine ejecting
a full can of soda has a mass of 0412 kg it contains 332 10-4 m3 of liquid assumingthat the soda has the same density
legolas shoots an arrow of mass 20 g horizontally into a baleof hay striking the hay with a velocityof 60 ms it
radio waves of very long wavelength can penetrate farther intoseawater than those of shorter wavelength the us
a 40-n stone is dropped from a height of 10m and strikes theground with a velocity of 7 ms what average force of air
a car of mass 1500 kg rounds a circular turn of radius 27meter if the road is banked at 15 degree and the coefficient
a certain groove in a phonograph record moves past the needleat 30 cms if the wiggles in the groove are 01 mm apart
a 20 m long pendulum is released from rest when the supportstring is at an angle of 25 degree with the vertical what is
a 10-kg box is at rest at the end of an unstretched springwith constant k4000 nm the mass is struck with a hammer with
a simple pendulum 100m in length is released from rest whenthe support string is at an angle of 350degfrom thevertical
in order to calculate the number of ways of arranging a givenamount of energy in a tiny block of copper the block is
river pascal with volume 50105 ls joins with riverarchimedes which carries 100105 ls to form bernoulli riverthe
a 500-kg student climbs a 500-m-long rope and atops at thetopa what must her average speed be in order to match the
there is a glass filled with 20cm of water and on top alayer of 30cm of oil that exactly weights 0700newton what is the
a solid cylinder of radius 35m is released from rest from aheight of 18m and rolls down the incline without slipping as