In a binary system, the more massive stars always stay closer to the center of mass and move slower
Indicate whether the statement is true or false
TRUE
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The atmospheres of both Titan and Triton are mainly ________
Fill in the blank(s) with correct word
A metal wire has a resistance of 14.00 ? at a temperature of 25.0°C. If the same wire has a resistance of 14.55 ? at 90.0°C, what is the resistance when its temperature is ?32.0°C?
a. 2.21 ? b. 13.5 ? c. 5.13 ? d. 39.2 ? e. 13.0 ?
A proton and an electron are both accelerated to the same final speed. If ?p is the de Broglie wavelength of the proton and ?e is the de Broglie wavelength of the electron, then
A) ?p = ?e. B) ?p > ?e. C) ?p < ?e.
Why would it not be a good idea to send a lander to one of the jovian planets?
A) The jovian planets have no solid surface to land on. B) The jovian planets are too far away. C) It would be impossible to slow the lander down sufficiently to avoid a catastrophic crash. D) There's too much risk of hitting a boulder in the planet's rings on the way down. E) There is nothing interesting to find on the jovian planets.