Rank the following 3 items from nearest to farthest. Hint: the Orion Nebula is a cloud of gas in which young stars are being born within the Milky Way, about 1,500 light-years away
A) star in the center of the Milky Way, Alpha Centauri, Orion Nebula
B) Alpha Centauri, Orion Nebula, star in the center of the Milky Way
C) star in the center of the Milky Way, Orion Nebula, Alpha Centauri
B
You might also like to view...
Complete the equation: CH3CH = CH2+ H2? ____________________
Fill in the blank(s) with correct word
Two objects have masses m and 5m, respectively. They both are placed side by side on a frictionless inclined plane and allowed to slide down from rest
A) It takes the lighter object 5 times longer to reach the bottom of the incline than the heavier. B) It takes the lighter object 10 times longer to reach the bottom of the incline than the heavier. C) It takes the heavier object 5 times longer to reach the bottom of the incline than the lighter. D) It takes the heavier object 10 times longer to reach the bottom of the incline than the lighter. E) The two objects reach the bottom of the incline at the same time.
A Carnot heat engine could have an efficiency of 100% only if the temperature of the exhaust were at ________.
What will be an ideal response?
The first confirmed detections of extrasolar planets occurred in
A) the 1990s. B) the mid-17th century. C) the 1920s. D) 2009.