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Two trains face each other on adjacent tracks. They are initially at rest, and their front ends are 46 m apart. The train on the left accelerates rightward at 1.05 m/s2. The train on the right accelerates leftward at 1.2 m/s2.
(a) How far does the train on the left travel before the front ends of the trains pass?
(b) If the trains are each 150 m in length, how long after the start are they completely past one another, assuming their accelerations are constant?
Suppose the space shuttle is in orbit 320km from the Earth's surface, and circles the Earth about once every90.9 minutes. Find the centripetal acceleration of the space shuttle in its orbit.
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A sample of animal bone unearthed at an archaeological site is found to hold 173 grams of carbon and the decay rate of 14-C in the sample is measured to be 8.10 Bq. How old is the bone.
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A charge of 0.99 C is spread uniformly throughout a 18 cm rod of radius 4 mm. What are the volume and linear charge densities?
A particular radioactive sample undergoes 3.60x10^6 decays/s. What is the activity of the sample in the following in curies
A 1.0-C charge is 15 m from a second charge, and the force between them is 1.0 N. What is the magnitude of the second charge
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A thin spherical shell of mass 0.450 kilogram and diameter 0.230 meter is filled with alcohol (ρ = 806 kg/m3). Obtain the acceleration of the alcohol-filled shell
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