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The 85-g top shown is supported at the fixed point O. The radii of gyration of the top with respect to its axis of symmetry and with respect to a transverse axis through O are 21 mm and 45 mm, respectively. Knowing that c = 37.5 mm and that the rate of spin of the top about its axis of symmetry is 1800 rpm, determine the two possible rates of steady precession corresponding to θ = 30°.
Sound travels with speed 130 m/s and frequency of 40 Hz, what is the travel distance ?
find the force required to give a helicopter of mass m an acceleration of 0.25g upward. what would be the apparent
a cessna aircraft has a lift-off speed of 120 kmh.a what minimum constant acceleration does the aircraft require if the
in a movie tarzan evades his captors by hiding underwater for many minutes while breathing through a long thin reed.
A ceiling fan with 82cm diameter blades is turning at 70rpm. Suppose the fan coasts to a stop 29s after being turned off. Illustrate what is the speed of the tip of a blade 10s after the fan is turned off?
A loose sun roof panel on an automobile is resting in place and is air-tight, but is unattached to the car because it is being repaired. The driver forgets, and drives onto the highway with the windows closed.
if a blue filter is placed over a light source aperture so that the incident rays are blue and these rays pass through
A coating is applied to a lens to minimize reflections. The index of refraction of the coating is 1.50, and that of the lens is 1.48. If the coating is 177.5 nm thick, what wavelength is minimally reflected for normal incidence in the lowest order? n..
a major leaguer hits a baseball so that it leaves the bat at a speed of 28. ms and at an angle of 36.9 above the
A 110-g bullet is fired from a rifle having a barrel 0.594 m long. Choose the origin to be at the location where the bullet begins to move. Determine the work done by the gas on the bullet
A block whose weight is 41.0 N rests on a horizontal table. A horizontal force of 36 N is applied to the block, what will be the block's acceleration? (If not, enter 0.)
a 28 kg block slides with an initial speed of 13 ms up a ramp inclined at an angle of 20 degrees with the horizontal.
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