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suppose you are climbing up stairs gaining 10 meters of height per minute in order to do that your body has to do some
a block of mass m 20 kg attached to a spring with spring constant k on a frictionless surface the block is pushed to
a cube of wood having an edge dimension of 203 cm and a density of 647 kgm3 floats on watera what is the distance from
a carbon steel piano wire 14 m long with a cross-sectional area of 2 times 106 m2 and mass 01 kg is stretched 23
air conditioning on a university campus is provided by chilled water 10oc pumped through a main supply pipe the pipe
the maximum acceleration of a fast freight elevator is 45 ms2 the maximum load of the elevator is 6651 kg and the
an astronaut weighs 152 n on the surface of the moon if the same astronaut orbits the moon at an altitude equal to the
a liquid hydrogen target of the thickness of 1cm and density of 0071 gcm3 is bombarded with a rare isotope beam of 60ca
compute the coulomb repulsion energy between two nuclei of 235u 137cs and 96zr that just touch at their surfaces b
an electric current of 1 a flows through a 20 resistor which is kept at a constant temperature of 10deg c by flowing
a gas is enclosed in a cylinder fitted with a light frictionless piston and maintained at atmospheric pressure when
find the moment of inertia of a solid cone of mass m about its vertical symmetry axis the cone has a height h and a
two space walkers one with a mass of 77 kg and the other with a mass of 78 kg hold on to the ends of a lightweight
the temperature of human is normally 370 degree celsiusa at what wavelength will a human radiate the maximum radiationb
two stars in a binary system orbit around their center of mass the centers of the two stars are 750 1011 m apart the
an electron entering thompsons em apparatus has an initial velocity in the horizontal direction only of 500106ms the
a circular loop of flexible iron wire has an initial circumference of 169cm but its circumference starts to decrease at
two particles each have a mass of 61 x 10-2 kg one has a charge of 41 x 10-6 c and the other has a charge of -41 x 10-6
a positive charge of q1 is located 535 m to the left of a negative charge -q2 the charges have different magnitudes on
a cart with mass 200gmoving on a frictionless linear air track at an initial speed of 11msundergoes an elastic
consider nh3 vapor acting as a van der waals gas with coefficients a 4169 atm-l2-mol-2 and b 00371 l-mol-1 how much
a single square loop of wire 218 cm on a side is placed with its face parallel to the magnetic field between the pole
a resistor r 900 a capacitor c 025 microf and an inductor l 40 h are connected in series across a 240 hz ac source
a sort of projectile launcher is shown in fig 20-65 a large current moves in a closed loop composed of fixed rails a
1 the speed of light in vacuum is186000 mis 300 times 108 ms use this fact to find the number of kilometers in a