The orbit of Mercury is more elliptical than that of any other terrestrial planet
Indicate whether the statement is true or false
TRUE
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Water is flowing through a pipe with a constriction. The area of the narrow section is one-half the area of the wide section. If the velocity of the incompressible fluid is 3.2 m/s in the narrow section, then what is the velocity of the fluid in the wide section?
A. 0.9 m/s B. 1.0 m/s C. 1.6 m/s D. 1.8 m/s E. 1.9 m/s
Suppose you see a photo showing Jupiter half in sunlight and half in shadow (that is, a first quarter Jupiter). This photo might have been taken by
A) the Galileo spacecraft that orbited Jupiter in the 1990s. B) the Hubble Space Telescope (which orbits Earth). C) the Keck Telescope on Mauna Kea, Hawaii. D) the Arecibo Radio Telescope in Puerto Rico.
Two satellites with equal rest masses are traveling toward each other in deep space. One is traveling at 0.550c and the other at 0.750c. The satellites collide and somehow manage to stick together
What is the speed of the combined object after the collision? A) 0.100c B) 0.113c C) 0.150c D) 0.175c E) 0.311c
With respect to the earth, object 1 is moving at speed 0.90 c to the right. Object 2 is moving to the left at speed 0.70 c with respect to object 1. How fast is object 2 moving with respect to the earth?
A) 0.12 c B) -0.20 c C) 0.54 c D) 0.20 c E) 1.6 c