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A homogeneous disk of mass m and radius r is mounted on the vertical shaft AB. The normal to the disk at G forms an angle b=25° with the shaft. Knowing that the shaft has a constant angular velocity ω, determine the angle θ Formed by the shaft AB and the angular momentum HG of the disk about its mass center G.
A scientist notices that an oil slick floating on water when viewed from above has many dissimilar rainbow colors reflecting off the surface. She aims a spectrometer at a particular spot and measures the wavelength to be 750 nm (in air). The index of..
an initially uncharged hollow metallic sphere with radius of 5 cm has a small object with a charge of 10 microc
A liquid is irregularly stirred in a well-insulated container and thereby experiences a rise in temperature. If the system is the liquid has heat been transferred?
a 0.400 kg object is swung in a vertical circular path on a string 0.550 m long. if its speed is 3.60 ms at the top of
11Na decays to 22 10Ne via ß+ with Tmax = 0.542 MeV followed by ? -decay with energy 1.277 MeV. If the mass of 22Ne is 21.991385 amu, determine the mass of 22Na in amu.
There is a second diaphragm fixed on the end of the second magnet which also allows only one component to pass. Describe qualitatively how the intensity of the beam passing the second diaphragm depends on a.
Two spheres are cut from a certain uniform rock. One has radius 4.30cm. The mass of the other is six times greater. Find its radius.
an astronaut on a small planet wishes to measure the local value of the free-fall acceleration by timing pulses
Two capacitors are connected parallel to each other and connected to the battery with voltage 30V. By how much energy of the system decreases
A point charge causes an electric flux of -670 N·m2/C to pass through a spherical Gaussian surface of 18.0 cm radius centered on the charge. What is the value of the point charge
a 1.80cm x1.80cm parallel-plate capacitor has a 2.10mm spacing. the electric field strength inside the capacitor is
Recent studies have raised concern about `heading' in youth soccer (i.e., hitting the ball with the head). A soccer player `heads' a size 4 ball deflecting it by 59.0°, What is the magnitude of the impulse which the player must impart to the ball
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