Physics, 20.08.2020 02:01 oscargonzalez1991
A star is 21.6 light years from earth. How long would it take a spacecraft traveling 0.950c to reach that star as measured by observers?a. On earth (seconds)b Wn the spacecraft (seconds)c. what is the distance traveled according to observers on the spacecraft (meters)d. what will the spacecraft occupants compute their speed to be from the results of b and c?
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Which additional product balances the reaction h2so4 + 2naoh → na2so4 + 2h2o 2oh h2o2 h3o
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Find an expression for the electric field e⃗ at the center of the semicircle. hint: a small piece of arc length δs spans a small angle δθ=δs /r, where r is the radius. express your answer in terms of the variables q, l, unit vectors i^, j^, and appropriate constants.
Answers: 1
A star is 21.6 light years from earth. How long would it take a spacecraft traveling 0.950c to reach...
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