Which hypothesis is most supported by astronomers?
A) The universe is currently expandin...
Physics, 01.04.2020 00:23 micahsocool23
Which hypothesis is most supported by astronomers?
A) The universe is currently expanding and will continue to expand.
B) Stars could burn out, causing the universe to become dark and cold.
C) Gravity could pull galaxies back together, causing a reverse of the big bang.
D) Dark energy will pull the universe together to form a massive black hole.
Answers: 2
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Apackage of supplies is dropped from a plane, and one second later a second package is dropped. neglecting air resistance, the relative velocity of the 1st package viewed from the second will 56) a) increase. b) be constant. c) be zero. d) depend upon their weight. e) decrease
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What property is a characteristic of a substance that can be observed and does not change the identity of the substance
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The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force
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