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singly ionized one electron removed atoms are accelerated and then passed through a velocity selector consisting of
an alpha particle a he nucleus containing two protons and two neutrons and having a mass of 652times1027 kg traveling
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a skier m610 kg starts sliding down from the top of a ski jump with negligible friction and takes off horizontally if h
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a 220 kg child slides down a slide that makes a 370deg angle with the horizontala what is the magnitude of the normal
an electron and proton are separated by 20 nma what is the magnitude of the force on the electronb what is the net
in a certain organic molecule the nuclei of two carbon atoms are separated by a distance of 025 nm what is the
a rock is thrown from the roof of a building with a velocity v0 at an angle alpha0 of from the horizontal the building
carbon-14 has an activity of 025 bq per gram of carbon for living organisms the half-life of carbon-14 is 5730 years if
an unknown substance has a mass of 0125 kg and an initial temperature of 775degc the substance is then dropped into a
imagine you are pushing a 15 kg cart full of 25 kg of water up a 10 degree ramp if the coeff of friction is 02 what is
a he-ne laser produces light of wavelength 633 nm with intensity 109 103 wm2 over a beam of cross-sectional area 104
human skin is most sensitive to ultraviolet light of approximate wavelength 300 nmfind the energy of a single photon of
a large grinding wheel in the shape of a solid cylinder of radius 0330 m is free to rotate on a frictionless vertical
walking on a merry-go-round a child of mass stands at rest near the rim of a stationary merry-go-round of radius and
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a block of wood weighing 2n slides down a 370 inclined plane starting from rest and reaching 2 ms what is the kinetic
a 250 kg child slides down a long slide in a playground she starts from rest at a height h1 of 2000 m when she is
a d 377 mm diameter wire carries an electric current of i 119 a when the electric field is e 660times10-2 vm along