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a diving board of length 300 m is supported at a point 100 m from the end and a diver weighing 480n stands at the free
cooling the steamwhat mass of steam initially at 130oc is needed to warm 200 g of water in a 100-g glass container from
an electron is trapped in a 1-dimensional box that is 601 nm wide initially it is in the n 2 energy level but after a
find the moment of the 2000-n from figure about the diagonal line
35000 joules of energy was needed to increase the temperature of a copper block by 35c the copper block has a mass of
a 110-kg tackler moving at 25 ms meets head-on and holds on to an 82-kg halfback moving at 50 ms what will be their
the coil shown in the figure below is wound across a solenoid that produces a magnetic field given by b 40 30 s2t2
the voltage across a coil whendidt 20 mas andl 8h is
a 100uf capacitor is initially chargcd to 10v the capacitor is disconnected from the source that charged it and then a
estimate the volume of a human heart in ml using the following measurementsassumptionsblood flow through the aorta is
estimate the velocity of a compressional wave in a homogeneous rock layer with a density of 275 gcm3 a youngs modulus
a estimate the speed in mph with which water comes out of a garden hose using your past observations of water coming
estimate the number of steps you would have to take to walk a distance equal to the circumference of the earth we
estimate how many photons of yellow light lambda 566 nm must be absorbed by 10 cm2 of human skin to raise the skin
a magnifying glass has a convex lens of focal length 15 cma draw the ray diagram that shows an object being magnified
estimate the fundamental frequency of vibration of a telephone line between adjacent poles assume the distance between
a puck moves across a level frictionless table toward a disk that is at rest the puck does not spin in this problem
an escalator carries you from one level to the next in an airport terminal the upper level is 47m above the lower level
1 a proton initially moves left to right along the x-axis at a speed of 20 x 105 ms it moves into an electric field
instructions assume you are asked to develop an additional form of propulsion for nasas next trip out of our solar
engineers at the university of texas at austin are developing an advanced locomotive propulsion system that uses a gas
an engine removes 200j from a hot reservoir at 373k does 48j of work and exhaust 152j to a cold reservoir at 273ka what
the energy gap for zns at 300 k is 36 eva find the lowest-frequency photon that can promote an electron from the
the energy of an elector in teh nth level of a hydrogen atom is en-136n2 ev where n123a find the wavelength of the