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The earth spins on its axis once a day and orbits the sun once ayear (365.24 days). In each case take the positive direction forthe angular displacement to be the direction of the earth's motion.
(a) Determine the average angular velocity ofthe earth as it spins on its axis.
(b) Determine its angular velocity as it revolves around the sun.
If an enclosed volume of ideal has is heated, raising its temperature from 10 c to 20 c, by what factor does the pressure change
you are helping your friend prepare for her next skate board exhibition. for her program she plans to take a running
A boat, whose speed in still water is 1.70 m/s, must cross a 260m wide river and arrive at a point 110m upstream form where it starts. What is the speed of the river's current
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a pendulum consists of a tin y bob of mass m attached to a uniform rod of mass m and length l. find the period of this
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As a 2.0-kg block travels around a 0.50-m radius circle it has anangular speed of 12 rad/s. The circle is parallel to the xy plane and is centered on the z axis, adistance of 0.75m from the origin. The z component of the angular momentum around th..
520-N uniform rectangular sign 4.00 m wide and 3.00 m high is suspended from a horizontal, 6.00-m-long, uniform, 150-N rod as indicated in the figure below. The left end of the rod is supported by a hinge and the right end is supported by a thin c..
two 10-cm-diameter charged rings face each other 23.0cm apart. both rings are charged to 40.0nc . what is the electric
A red line (? = 630 nm) in the third order overlaps with a blueline in the fourth order for a particular diffraction grating. What is the wavelength of the blue light
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