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a 175 kg cart is moving with a velocity of 765 ms down a level hallway a constant force of -100 n acts on the cart and
an m 660-kg clay ball is thrown directly against a perpendicular brick wall at a velocity of 220 ms and shatters into
although they donrsquot have mass photonsmdashtraveling at the speed of lightmdashhave momentum space travel experts
in the 1950s an experimental train that had a mass of 200 104 kg was powered across a level track by a jet engine that
toni has a mass of 43 kg and is moving with a speed of 116 ms assume that air resistance is negligiblea find tonis
a comet with a mass of 775 1011 kg strikes earth at a speed of 26 kmsa find the kinetic energy of the comet in joulesb
a different wheatstone bridge has a sensitivity of 26 mvo what will be the approximate output voltage difference when
piston-cylinder device has nitrogen gas at 160 kpa and 158oc the 23-cm diameter piston initially pushes against a set
a large tank is divided into two parts by a partition the first part contains 5 kg of refrigrtant-134a at 80oc 900 kpa
a doubly charged helium atom whose mass is 66 10- 27 kg is accelerated by a voltage of 2400 vwhat will be its radius
an electron is projected vertically upward with a speed of 150 106 ms into a uniform magnetic field of 0200 t that is
positively charged aluminum ion al3 has a mass of 450 1026 kg after being accelerated through a potential dierence of
an electron moves along the z-axis with vz 44 x 107 ms as it passes the origin what are the strength and direction of
a block of mass 175 kg is kept at rest as it compresses a horizontal massless spring k 883 nm by 559 cm as the block
a beam of sunlight encounters a plate of crown glass at a 3650deg angle of incidence crown glass has n 1520 for red
object o1 is 147 cm to the left of a converging lens with a 120-cm focal length a second lens is positioned 100 cm to
explain the average osmotic pressure of blood versus water is 760 atm at temp t310k compute the total solute
a explain why must the slit width of a prism monochromator be varied to provide constant effective bandwidths but a
compute the change in internal energy e for a system that is giving off 250 kj of heat also is changing from 1200 l to
explain ammonia and hydrogen chloride gases react to form solid ammonium chloride a 100 l reaction flask contains
liquid nitrogen trichloride is heated in a 211-l closed reaction vessel until it decomposed wholly to gaseous elements
explain a sample of an unknown gas effuses in 109 min an equal volume of h2 in the same apparatus under the same
a 454 g block of lead is at an initial temperature of 225 degrees celsius define what will be the temperature of the
state a 1300 ml sample of a solution that is 29times10-3 m in agno3 is mixed with a 2200 ml sample of a solution that
state cfcs such as cf2cl2 are refrigerants whose use has been phased out for the reason that their destructive effect