The closest known star to our solar system is Alpha Centauri, which is approximately 4.30 light years away. A spaceship with a constant speed of 0.800c relative to the earth travels from Earth to this star
(a) How much time would elapse during the trip on a clock on board the spaceship?
(b) How much time would elapse during the trip on a clock on Earth?
(a) 3.23 y (b) 5.38 y
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Due to inertia, perhaps a railroad train in motion should continue moving indefinitely when its engine is turned off. This is not observed because railroad trains
A) aren't massive enough. B) are too heavy. C) ride on straight tracks. D) encounter opposing forces.
Process of Science: Devise an experiment you could conduct (using any technology you can dream up—it doesn't have to already exist) to test a prediction of special relativity
What will be an ideal response?
Gamma radiation is used to kill harmful bacteria in food
Indicate whether the statement is true or false
When a star collapses to half size, the gravitational field at its surface
A) doubles. B) quadruples. C) increases eightfold. D) remains constant.