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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
a biker is riding on a level horizontal road the coeffients of friction between her tires and the road are micros 076
a particle moves through an xyz coordinate system while a force acts on it when the particle has the position vector
two masses m1 and m2 move in a plane and interact by potential energy ur12kr2 write down their lagrangian in terms of
a toroidal shaped magnetic material of radius a and cross sectional radius r has a small transverse gap cut into it of
a worker pushed a 27 kg block 76 m along a level floor at constant speed with a force directed 32deg below the
a small rigid cylindrical vessel contains 1 kg of humid air at 80oc under a total pressure of 1 bar the humid air
determine the enthalpy change and internal energy change of ammonia in jmole as it is heated from 350 k to 600 k using
moist air at 12oc and 80 rh enters a duct at a rate of 150 m3min the mixture is heated until it exits at 35oc the
the cooling circuit of an air conditioning system is a heat exchanger and the outside air passes the air flow is 40
a 50 m3 insulated chamber containing air at 40oc 100 kpa rh 20 is connected to another 50 m3 insulated chamber
a bicycle wheel with a radius of 38 cm is given an angular acceleration of 280 rads2 by applying a force of 025 n on
a solid disk with a moment of inertia of 353 kg m2 is spinning about its axle such that the disk rotates by 2p radians
compute explicitly energy eigenvalues and eigenfunctions of the quantum two- dimensional harmonic oscillator described
a person with mass mp 77 kg stands on a spinning platform disk with a radius of r 216 m and mass md 185 kg the disk
a cylinder having a piston restrained by a linear spring contains 05 kg of saturated steam at 120 deg c heat is
assume that the interior of the earth can be treated as an incompressible fluid in equilibrium hint let denote the
pumped energy storage a water reservoir has surface area a and depth d the water flows down pipes and through turbines
a monochromatic parallel beam of light of wavelength 633 nm is incident on totally reflecting plane mirrorangle of
a town has 500 real estate agents the mean value of the properties sold in a year by these agents is 800000 and the
two plane waves have the same omega k and amplitude e but opposite circular polarisations ie left and right show that
consider a simple spherical wave with omegakcer theta phi ta sin thetarcoskr - omega t -1krsinkr - omega t phi-hatshow