The vertical component of the acceleration of a projectile remains constant during the entire trajectory of the projectile
Indicate whether the statement is true or false
TRUE
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Two otherwise identical light waves arriving at the same point with peak matching valley undergo
a. constructive interference b. destructive interference c. polarization d. none of the above
________ is the concept that all large samples of the universe are alike in appearance anywhere in the universe
Fill in the blank(s) with correct word
Which of the following observational techniques is most appropriate for measuring Doppler shifts?
A) spectroscopy (taking a spectrum) B) imaging (taking a picture) C) timing (measuring how the amount of light changes with time)
A 100 lb sack of potatoes falls from an airplane. As the velocity of fall increases, the air resistance also increases. When air resistance equals 100 lb, the acceleration of the sack will be ____ m/sec/sec
a. 0 b. 16 c. 32 d. 9.8 e. 24