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A disk 7.96 cm in radius rotates at a constant rate of 1 150 rev/min about its central axis.
(a) Determine its angular speed. rad/s
(b) Determine the tangential speed at a point 3.02 cm from its center.
m/s
(c) Determine the radial acceleration of a point on the rim.
magnitude km/s2 direction
(d) Determine the total distance a point on the rim moves in 2.08 s.
m
A monoenergetic beam of neutrons, cp = 4 X 1 0 10 neutrons/cm2-sec, impinges on a target 1 cm2 in area and 0. 1 cm thick. How many neutron interactions per second occur in the target
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A team of tornado-chasing meteorology graduate students is out in search of tornados. They drive directly toward a tornado warning siren at 25.5 m/s
At a certain instant, the earth, moon, and a stationary 1500-kg spacecraft are at the vertices of an equilateral triangle of length 3.84 × 108 m. What is the magnitude of the net gravitational force acting on the spacecraft
A farsighted person can read printing as close as 25.0 cm when she wears contacts that have a focal length of 37.4 cm. What is the maximum angular magnification that the magnifying glass can provide for her
Sodium ions (Na+) move at 0.841 m/s through a bloodstream in the arm of a person standing near a large magnet. what would be the magnetic force on the arm
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