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Two small charges with a mass of 1.0 g each are connected by a 2.0 cm long insulating rod of negligible mass. Each ball has the same magnitude of charge of 10nC, but with opposite signs. The rod is held in a 1.0x10^4 N/C uniform electric field at the angle of 30 degrees, then released to rotate around its center of mass.
a. What is the dipole moment of the rod?
b. Calculate the magnitude of the torque exerted on the rod by the electric field.
c. Obtain the moment of intertia around the center of mass.
d. What is the initial angular acceleration when the rod is released?
A piece of string wraps around a cylinder 8 times. The length of the string is 14 cm. calculate the circumference of the cylinder.
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Six mass pieces of 100g each are placed on a mass holder of 140g which is hung from a string. Analyse the tension in the string.
On average, each American produces 20,000 kg of CO2 per year, mostly through the consumption of fossil fuel such as oil, coal, and natural gas. determine the length of each side of the cube
Introductory Mechanics: Calculate the smallest coefficient of static friction
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Two long parallel wires each with a mass per unit length of 25.10 g/m are supported in a horizontal plane by 2.5 cm long strings. Each wire carries the same current, I, causing the wires to repel each other so that the angle between supporting string..
Where is center of mass of the system
A standing observer perceives a train whistle to have a frequency of 300 Hz. compute the frequency of the sound waves emitted from the train
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