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the pulley system shown in the figure is used to lift a 53 kg crate note that one chain connects the upper pulley to
a particle of charge e is initially at coordinate z 20 nm on the dipole axis through an electric dipole on the
ball of mass m hangs on a string of length l straight down from a cart of mass m standing on horizontal rails the cart
two particles of masses m1 and m2 are joined by a massless spring of natural length l and force constant k initially m2
an electric field given by 60middot - 39y2 35middot pierces a gaussian cube of edge length 32 m and positioned as
a fire hose ejects a stream of water at an angle of 383 deg above the horizontal the water leaves the nozzle with a
a skateboarder shoots off a ramp with a velocity of 61 ms directed at an angle of 58degrees above the horizontal the
an air parcel occupied by an ideal gas t1 255 k v1 1500 m3 m1 1680 kg collides and mixes with a second air parcel
in a carnot cycle the area for each transformation corresponds to the following work a isothermal expansion 31165 j b
find the lower limit for the change in specific entropy of dry air at a given temperature and pressure which is allowed
calculate the change in internal energy when 1 mole of liquid water at 1atm and 100 degrees c is evaporated to water
water at 100 degrees is flowing through a long pipe of radius 1rapidly enough so that we may assume that the
treating the clouds as an ideal gas with adiabativ index gamma53 work out the relationship between the inital and final
a point particle with charge q 82 microc is placed at a corner of a cube of edge a 11 cm what is the flux through a
an air track glider undergoes a perfectly inelastic collision with an identical glider that is initially at rest what
given that the current natural abundance of u-235 is 72 atom-percent and neglecting u-234 content of uranium how long
a charge of -0510 micro coulombs exerts an upward 0210 newton force on an unknown charge that is 300m directly below it
a calculate the r-value of a thermal window made of two single panes of glass each 0100 in thick and separated by a
at high noon the sun delivers 1000 w to each square meter of a blacktop road if the hot asphalt transfers energy only
200-mol sample of helium gas initially at 300 k and 0500 atm is compressed isothermally to 200 atm noting that the
a beam of light is incident on a plane mirror at an angle of 32 degrees relative to the normal what is the angle
an automobile has a mass of 1500 kg and its aluminum brakes have an overall mass of 600 kg a assume all the mechanical
imagine a sphere of radius r filled with negative charge of uniform charge density the total charge is equivalent to
three positively charged particles are constrained to move on a fixed circular track if all charges were equal the
you have carefully prepared the wave function of an electron to be in the first energy eigenstate of an infinite