5 articles trouvés pour ce sujet.
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Travelling in a spacecraft |
2016-03-25 |
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julie pose la question :
if i was travelling in a spacecraft at the speed of light and i turned on my headlight would i see the beam ?
Robert Dawson lui répond. |
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e = m c^2 |
2009-12-09 |
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Jim pose la question :
Please explain the following formula:
E=MC2 (squared)
Robert Dawson lui répond. |
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How far from Earth is Neptune? |
2006-03-21 |
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Scott pose la question :
A laser beam travelling at the speed of light bounces off the planet Neptune and returns to Earth in 29 960.72 s. The speed of light is 299 792.5 km/s. How far from Earth is Neptune?
Penny lui répond. |
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Accelerating to the speed of light |
2004-09-30 |
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Lars pose la question :
How long time would it take to accelerate up to the speed of light with an acceleration speed similar to 0-100 seconds in 5 seconds?
Penny Nom lui répond. |
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The speed of light |
2000-06-19 |
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Benny Lau pose la question :
I have a personal questions. In physics,if a person is running on a train, his relative speed on the ground will be the addition of the speed of train and the person. If u have a train inside another train and inside another train, so on...... can u reach the speed of light? It would need a very long distance. But if we make all the train travel in circles. Then we don't need that much distance. So can we achieve the speed of Light?
Robert Coleman and Harley Weston lui répond. |
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