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If astronauts could travel at v = 0.970c, we on Earth would say it takes (4.20 / 0.970)= 4.33 years to reach Alpha Centauri, 4.20 light 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 the astronauts?
A parallel-plate capacitor has a capacitance of 19.0 µF. What charge on each plate would produce a voltage of 36.0 V between the plates? What is the voltage between the plates?
A gas changes in volume from 0.770 m3 to 0.220 m3 at a fix pressure of 1.40 105 Pa, Evaluate how much work is done on the gas
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A simple pendulum is made of a small blob of mass m = 9.500 kg attached to the end of an inextensible wire. find the magnitude of the tension in the wire
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If the rms electric field of this light is 16.0N/C at a distance of 1.30m from the bulb, what is the average total power radiated by the bulb
a surface completely surrounds a 4.7 10-6 c charge. find the electric flux through this surface when the surface is a
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When people exercise they shed heat to the environment by sweating and radiating. calculate the rise in body temperature after 1 hour
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A molecule of DNA (deoxyribonucleic acid) is 2.09 µm long. The ends of the molecule become singly ionized: negative on one end, compute the effective spring constant of the molecule
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