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Two stars in a binary system orbit around their center of mass. The centers of the two stars are 6.17x1011 m apart. The larger of the two stars has a mass of 3.43x1030 kg, and its center is 2.32x1011 m from the system's center of mass. What is the mass of the smaller star?
Potassium iodide has an interplanar spacing of d = 0.296 nm. A monochromatic X-ray beam shows first-order diffraction maximum while the grazing angle is 7.8°. Compute the X-ray wavelength λ .
A ballerina spins initially at 1.5 revolutions/second when her arms are extended. Determine her initial moment of inertia
The technique known as potassium-argon dating is used to date old lava flows and thus any fossilized skeletons found in them, detrermine the age of a piece of solidified lava
A 4.6 long, 480 steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction.
Find the center of mass of a system composed of three spherical objects with mass of 3.0kg, 2.0kg, and 4.0kg
Given an isothermal expansion of gas from 1.0 to 2.0 cubic meters in a piston-cylinder arrangement where pressure varies according to P= 1.2 atm -.062 atm/ m^3 V, How much thermal energy was transferred
You have a pulley 13.1 cm in diameter and with a mass of 2.0 kg. You get to wondering whether the pulley is uniform. What is the actual moment of inertia of the pulley
Three 10.53-g Styrofoam balls of radius 2 cm are coated with carbon black to make them conducting, Determine the absolute value of q
Suppose in the drawing that I1 = I2 = 42.4 A and that the separation between the wires is 0.0215 m. What is the magnitude of the external field
An electron with speed v0 =4.16×106m/s is traveling parallel to and along the same direction as an electric field of magnitude E = 7.90×103N/C, How far will the electron travel before it stops
A step-up transformer for long-range transmission of electric power is used to create a potential difference of 1.0921 x 10^5 V across the secondary. How many turns are in the primary
A 4.6mH toroidal inductor has 150 identical equally spaced coils. If it carries an 12.0A current, at what rate is the current in it changing
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