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Problem: A 14 cm diameter CD has a mass of 20 g.
Part I: What is the CD's moment of inertia for rotation about a perpendicular axis through its center?
Part II: What is the CD's moment of inertia for rotation about a perpendicular axis through the edge of the disk?
I need expert help to solve the above question and express your answer to two significant figures and include the appropriate units.
A 10-cm-diameter cylinder of helium gas is 20 cm long and at 20°C. The pressure gauge reads 120 psi. how many helium atoms are in the cylinder? what is the mass of the helium?
If the rms electric field of this light is 18.0N/C at a distance of 1.50m from the bulb, what is the average total power radiated by the bulb
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A 35.0-kg seal at an amusement park slides down a ramp into the pool below. The top of the ramp is 1.80 m higher than the surface of the water, and the ramp is inclined at an angle of 30.0° above the horizontal. The seal reaches the water with a s..
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To study the wave nature of electrons, some physics students propose to accelerate a group of electrons during a voltage so that the de Broglie wavelength of the electrons will equal that of light (about 600nm).
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A block of mass 4.7 kg slides 20 m from rest down an inclined plane making an angle of 24 o with the horizontal. If the block takes 10 s to slide down the plane, what is the retarding force due to friction?
Express your answer with the appropriate units.
Consider two massless springs connected in series. Spring 1 has aspring constant k_1, and spring 2 has a springconstant k_2. A constant force ofmagnitude F is being applied to theright. When the two springs are connected in this way, they form asy..
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