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The stars ? Aurigae A and ? Aurigae B constitute a double-lined spectroscopic binary with an orbital period of 3.96 days. The radial velocity curves of the two stars have amplitudes vAsini=108km/s and vBsini=111km/s. If i=90°, what are the masses of the two stars?
A step-down transformer is used for recharging the batteries of portable devices. calculate rms output voltage of the transformer
Your eye (diameter 2.5 cm) is able to focus the image of a tree on your retina. What is the size of the image of the tree on your retina
A 0.410kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 22.0N/m . The block rests on a frictionless surface. A 6.00×10^2kg wad of putty is thrown horizontally at block, hitting it with a s..
What is the effective resistance of a parallel combination of a very large resistance and a very small resistance, what will be the current through each resistor
A spring with 58 hangs vertically next to a ruler. The end of the spring is next to the 11- mark on the ruler. If a 2.5- mass is now attached to the end of the spring, illustrate where will the end of the spring line up with the ruler marks?
Ground beef may be irradiated with high-energy electrons from a linear accelerator to kill pathogens. What is the average rate (in W) of energy deposition in the beef
A slide projector needs to create a 96 cm-high image of a 2.20 cm-tall slide. How far should you place the lens from the slide.
An electric dipole of dipole moment = (5 × 10-10 C.m) is placed in an electric field = (2 × 106 N/C) +(2 × 106 N/C)
As structural steel rod has a radius R = 9.5 mm and a length L = 81 cm. A force F = 6.2 × 104 N (about 7 tons) stretches it along its length. What is the tensile stress in the rod
A 44.0-? resistor is connected in series with a 68.0-µF capacitor and a generator having a maximum voltage of 1.20E2 V, find the capacitive reactance of the circuit
A ball is thrown on a projectile path with an initial vertical velocity of 30 m/s. find the initial horizontal velocity
q1. assume that when you ride on your 7.60-kg bike the weight of you and the bike is supported equally by the two
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