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Physics, 22.06.2019 18:30
Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.
Answers: 1
Physics, 23.06.2019 08:30
What is the electric potential at a distance of 1.2 m from a 7.5 ยตc point charge? 5.6 ร 104 v 8.1 ร 104 v 5.6 ร 1010 v 8.1 ร 1010 v
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Physics, 23.06.2019 12:00
What was the approximate temperature of the universe at an age of 1015 s?
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Physics, 23.06.2019 20:00
Neil armstrong, the first human being to step on the moon, left a foot print that is essentially unchanged nearly 50 years later. how is it possible for this, and all the other footprints, tracks and markings, left on the lunar surface to remain unchanged for so long?
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