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a 00500-kg lead bullet of volume 500 times 106 m3 at 200 degc hits a block that is made of an ideal thermal insulator
a a block of wood in the shape of a cube 50 cm on a side is floating in water with its top face parallel to the surface
a beam of laser light with a wavelenth of 59000 nm passes through a circular aperture of diameter a 0163 mm what is
a grating spectrometer is used to resolve second order peaks from two wavelengths of 1 49500 nm and 2 49571 nm what
a large tower clock like big ben the parliment clock in london has an hour hand 270 m long with a mass of 545 kg and a
a sample of uranium is enriched to 32 atom-percent in u-235 with the remainder being u-238 what is enrichment of u-235
using a refracting telescope you observe the planet mars when it is 211 times 1011 m from earth the diameter of the
a street merchant is trying to sell you a 14 karat gold bracelet for 450 100 pure gold is 24 karats the gold is
two ice skaters with masses of 500kg and 750kg are at the center of a 400m -diameter circular rink the skaters push
a student sits on a rotating stool holding two weights each of mass 300 kg when his arms are extended horizontally the
a solid aluminum sphere has a mass of 87g how do you use the density of aluminum to find the radius of the sphere in
a block of mass m1 300 kg and a block of mass m2 800 kg are connected by a massless string over a pulley in the shape
a tennis player swings her 1000 g racket with a speed of 900ms she hits a 60 g tennis ball that was approaching her at
you find an unlabeled box of fine needles and want to determine how thick they are a standard ruler wont do the job
a 300kg ball of clay traveling east at 250ms collides and sticks together with a 300kg ball of clay traveling north at
light of wavelength 5680 nm is incident on a narrow slit the diffraction pattern is viewed on a screen 625 cm from the
a 300 bird flying along at 60 ms sees a 70 g insect heading straight toward it with a speed of 25ms as measured by an
a box contains a mixture of small copper spheres and small lead spheres the total volume of both metals is measured by
using a 683-nm wavelength laser you form the diffraction pattern of a 0113-mm wide slit on a screen you measure on the
the figurefigure 1 shows the light intensity on a screen behind a double slit the slit spacing is 025 mm and the
you illuminate a slit of width 00583 mm with light of wavelength 711 nm and observe the resulting diffraction pattern
a spherical brass shell has an interior volume of 160 x 10-3 m3 within this interior volume is a solid steel ball that
why does the temperature 25 degrees celsius have three significant figures and the temperature of -196 degrees celsius
a uniform 17-kg rod that is 097 m long is suspended at rest from the ceiling by two springs one at each end both
you perform a double-slit experiment in order to measure the wavelength of the new laser that you received for your