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a boatss motor can allow it to travel at speed 2v the boat is aimed with a heading of 180 degrees the river is x metes
household wiring made of aluminum wire with cross section area 31 x10-6 m2 carries a current of 45 a the bulk
a jetliner with an airspeed of 1000kmh sets out on a 1500-km flight due south to maintain a southward direction however
a 25 m-long pendulum is released from rest when the support string is at an angle of 20deg with the vertical what is
a centrifuge in a medical laboratory is rotating at an angular velocity of 360 revolutionsminute when it is switched
explain the physical phenomenon which causes the lower limit of the tunneling resistance of the source-qd and drain-qd
moist air with dry and wet bulb temperatures of 20oc and 9oc respectively enters a steam-spray humidifyer at rate of
determine the enthalpy change and internal energy change of ammonia in jmole as it is heated from 350 k to 600 k using
an infinitely long cylinder of radius r carries a frozen-in magnetisation parallel to the z-axis mk s k-hat where k is
a particle of mass m strikes a wall at an angle theta with respect to the normal the collision is inelastic with
two beams of 1kev neutrons intersect at an angle of 30o one beam has a neutron density of 1times106 neutronscm3 the
the drawing below shows an inverted a that is suspended from the ceiling by two vertical ropes each leg of the a has
a mass m is suspended by a massless spring of spring constant k and unstretched length b the suspension point has a
you are at a party playing a game of ldquospin the bottlerdquo when you notice an insect in the bottle1 when the bottle
two infinitely long straight currents are parallel to z axis one of them carrying a current i1 intersects at the x-y
how many nitrogen molecules must strike a 1 cm2 surface each second to exert a pressure of 1 atm assume that the
two atoms of masses m1 and m2 are bound together in a molecule with energy so low that their separation is always close
a wedge of mass m and angle a slides freely on a horizontal plane a particle of mass m moves freely on the wedge
derive lagranges equation of motion for a uniform thin dizk that rolls without slipping on a horizontal plane under the
a particle of mass m moves in a force field whose potential in spherical coordinates is v -k cosr2 find the canonical
if you stand on a bathroom scale the spring inside the scale compresses 50mm telling you your weight is 700n if you
a 120-rm kg shell is launched at an angle of 550 circ above the horizontal with an initial speed of 150 rm ms when it
an observer detects two explosions one that occurs near her at a certain time and another that occurs 200 ms later 100
an electron has a kinetic energy of 0100 mev find its speed according to classical and relativistic