A rocket can never go faster than the speed of its exhaust
Indicate whether the statement is true or false
F
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Binary black holes have much higher masses than their white dwarf and neutron star counterparts, which should lead to a much stronger emission of gravitational waves
What is the most reasonable explanation for why we have not yet observed gravitational waves from black-hole binaries? A) Black hole binaries are very rare, and wave detection is difficult. B) The waves disappear into the black hole. C) The waves must be coming from very far away and haven't reached us yet. D) Our current theories must be wrong.
Describe the process of storing electrical energy in a capacitor
What will be an ideal response?
Quasars are far enough away that we must take the relativistic redshift into account when calculating their age
Indicate whether the statement is true or false
Normal galaxies in the present never went through an active galaxy phase
a. True b. False Indicate whether the statement is true or false