The size of a star's image in a photo tells you how _______________ the star appears
Fill in the blank(s) with correct word
bright
Physics & Space Science
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The bright blue stars of Orion's Belt are Population I, while our yellow Sun is population II
Indicate whether the statement is true or false
Physics & Space Science
An ammonia molecule is
a. pyramidal and polar. b. pyramidal and nonpolar. c. flat and polar. d. flat and nonpolar.
Physics & Space Science
Which of the following frequencies could NOT be present as a standing wave in a 2m long organ pipe open at both ends? The fundamental frequency is 85 Hz
a. 85 Hz. b. 170 Hz. c. 255 Hz. d. 340 Hz. e. 382 Hz.
Physics & Space Science
If the density of the universe is equal to the critical density, and H equals 50 km/sec/Mpc, then the true age of the universe is 13.3 billion years
Indicate whether the statement is true or false
Physics & Space Science