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a cart is sitting at the top of an inclined plane 52 m long and meets the horizontal at 12o the cart is then allowed to
neutrons released by a fission reaction must be slowed by collisions with the moderator nuclei before the neutrons can
a muon and its antiparticle annihilate each other producing two gamma-ray photons the kinetic energies of the particles
a 200 kg stone is tied to a 0500-m length of string and swung around a circle at a constant angular velocity of 120
compute what speed must an electron have if its momentum is to be the same as that of an x-ray photon with a wavelength
an iron ball of mass 500 gram at a temperature of 500 degc is cooled by placing it on a block of ice taken from the
two point particles with equal mass m are released from rest a distance d apart and are attracted toward every other
a cube of aluminum 050 meter on a side is immersed one-fourth in water and three-fourths in glycerin determine the
a particle whose mass is 2 kilogram moves in the xy plane with a fix speed of 3 ms in the x-direction along the line y5
a 100 gram object moving to the right at 220 cms creates an elastic head-on collision with a 150 gram object moving in
a neutron star is composed of neutrons and has a density that is about the equal as that of a nucleus determine the
during a shuffleboard game a disk is given an initial speed of 680ms the coefficient of kinetic friction between the
jupiter is the largest planet in our solar system having a mass and radius that are correspondingly 318 and 112 times
a 010 kilogram ball is thrown straight up into the air with an initial speed of 12 msa obtain the momentum of the ball
a pipe of length l 0320 meter and diameter d 0088 meter is open at both ends a speaker is placed near one end and its
the decay constant for a certain nucleus is r 0010min-1 at t 0sec a sample contains106 of these nucleia compute how
a flywheel is a solid disk that rotates regarding an axis that is perpendicular to the disk at its center rotating
a 40 kilogram mass is attached to a spring that has a spring constant k2500 nm and is resting on a frictionless
a whale of 18 meter in length and mass 4000 kilogram leaps straight out of the water such that half its body length is
a speaker is mounted on a vertical pole at the similar height as your ear a second speaker is mounted on the same pole
a heart ejects 50l per minute of blood into the aorta the average blood speed in the aorta is 22cms the density of the
how much power does a 60w120v incandescent light bulb dissipate when operated at a voltage of 115vnbsp neglect the
a horizontal pipe contains water at a pressure of 120 kpa flowing with a speed of 15ms the pipe narrows to one-half its
standing on the sidewalk next to your parked vehicle you hear the siren of an approaching fire engine the transmittal
a gymnast is performing a floor routine in a tumbling run he spins through the air increasing his angular velocity from