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A period of 6.00 s is observed for the angular oscillations of a 4-oz Review Problems gyroscope rotor suspended from a wire as shown. Knowing that a period of 3.80 s is obtained when a 1.25-in.-diameter steel sphere is suspended in the same fashion, determine the centroidal radius of gyration of the rotor. (Specific weight of steel
Three point charges are arranged on a line. Charge q3 = +5.00 nC and is at the origin. Charge q2 = -3.50 nC and is at x = 5.00cm . Charge q1 is at x = 2.00cm.
parachutist with a camera, both descending at a speed of 13 m/s, releases that camera at an altitude of 110-m.
when a force is moved to a point not along its line of action it can be replaced witha. a resultant force and moment.b.
In a Young's double-slit experiment, the seventh dark fringe is located 0.031 m to the side of the central bright fringe on a flat screen, which is 1.1 m away from the slits. The separation among the slits is 1.6 x 10 -4 m. What is the wavelength of..
Air expands adiabatically (no heat in, no heat out) from T = 300 K and P = 100 atm to a final pressure of 1 atm. Treat the gas as ideal with Cp/Cv = 1.4, and decide the final temperature. Compare your result to the boiling points of oxygen (90.2 K) a..
A projectile is fired straight up at a speed of 15 m/s. The acceleration of gravity is 9.8m/s2. Find how long does it take to reach the top of its motion
Why do magnetic field lines contract longitudinally and exert a lateral pressure?
Blood flows through a vein at a rate of 3.5 mL/s. Among other things, it contains a protein with a molecular weight of 63,000, at a concentration of 2.9 g per 150 mL. How many grams of this protein are carried by the blood each second?
The moon orbits the earth at a distance of 3.85 x 10^8 m. Assume that this distance is between the centers of the earth and the moon and that the mass of the earth is 5.98 x 10^24 kg. Find the period (in days) for the moon’s motion around the earth.
A meter stick with a mass of 0.159kg is pivoted about one end so it can rotate without friction about a horizontal axis. Calculate the angular speed of the stick
Assume all the electrons could be removed from earth. Discover the force on a proton just above the Earth's surface under these conditions. Compare your answer in part (a) by the weight of the proton.
A blue ball is thrown upward with an initial speed of 21.6 m/s, from a height of 0.9 meters above the ground. 2.6 seconds after the blue ball is thrown, What is the maximum height the blue ball reaches
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