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If astronauts could travel at v= 0.950c, we on Earth would sayit takes (4.20/0.950) = 4.42 years to reach Aplha Centauri, 4.29light years away. The astronauts disagree.
a) How much time passes on the astronauts clocks?
b) What is the distance to Alpha Centauri as measured by theastronauts?
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A uniform rod of mass 3.00 x 10^-2 kg and length 0.350m rotates in a horizontal plane about a fixed axis through its center and perpendicular to the rod. What is the angular speed of the system at the instant when the rings reach the ends of the ro..
Chromium is produced by reacting with its oxide with aluminium. If 304 g of Cr2O3 and 108 g of Al completely react to form 204 g of Al2O3 how many grams of Cr are formed.
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