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Five identical particles of mass m = 0.30 kg are mounted at equal intervals on a thin rod of length scripted l = 1.13 m and mass M = 2.4 kg, with one mass at each end of the rod. If the system is rotated with angular velocity ? = 60 rev/min about an axis perpendicular to the rod through one of the end masses, determine the following.
(a) the kinetic energy of the system
kg·(m/s)2
(b) the angular momentum of the system
kg·m2/s
The metal equilateral triangle in the figure, 20 {rm cm} on each side, is halfway into a 0.10 {rm T} magnetic field.What is the magnetic flux through triangle.
An 8.30 kg stone at rest on a spring. The spring is compressed 11 cm by the stone. The stone is after that pushed down an additional 26.00 cm and free. To what highest height (in cm) does the stone rise from that position.
define why a dielectric increases the maximum operating voltage of a capacitator even though the physical size of the capacitator doesn't change.
A parallel-plate capacitor has fixed charges +Q and -Q. The separation of the plates is then doubled. (a) By what factor does the energy stored in the electric field change? (b) How much work must be done in doubling the plate separation from d to..
define the dielectric constant of the dielectric.
A spring with 49 N/m hangs vertically next to a ruler. The end of the spring is next to the 17-{rm cm} mark on the ruler. If a 2.0-{rm kg} mass is now attached to the end of spring, where will the end of the spring line up with the ruler marks.
What is the maximum speed with which a 1200 kg car can round a turn of radius 60.0m on a flat road if the coefficient of friction between tires and road is 0.65.
You're driving down the highway late one night at 17 {rm m}/{rm s} when a deer steps onto the road 45 {rm m} in front of you. Your reaction time before stepping on the brakes is 0.50 {rm s} and the maximum deceleration of your car is 12 {rm m/s^2}..
A hypothertical 30 cm long arm. For the purposes of answering this question assume that the arm itself is weightless. what is the maximum mass that can be held in the hand if the muscle is attached 2 cm from the bleow
A thin metallic shell of radius 40 cm has a charge of -25 nC on it. At the center of sphere is a point charge of 35 nC. What is the electric field 15 cm from the center of the shell.
When a satellite orbits the earth in a non-circular orbit which of the following is true.
M1 is a spherical mass (43.0 kg) at the origin. M2 is also a spherical mass (17.2 kg) and is located on the x-axis at x = 99.0 m. At what value of x would a 16.5-kg mass experience no net gravitational force due to M1 and M2?
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