The following are data for an accelerating car: t (s) 0 5 10 15 20 ------------------------ v (m/s) 0 3 6 9 12
a. Is this car undergoing uniform acceleration?
b. If so, what is the acceleration?
a. Yes
b. 0.6 m/s2
Physics & Space Science
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The "X" in X-ray stands for ______________
Fill in the blank(s) with correct word
Physics & Space Science
Carbon-14 is produced in the atmosphere principally by
A) plants and animals. B) cosmic-ray bombardment. C) nitrogen bombardment. D) photosynthesis. E) none of the above
Physics & Space Science
When a brittle material reaches the fracture stress, the increase in energy necessary to extend a crack in the material is equal to _________.
Fill in the blank(s) with the appropriate word(s).
Physics & Space Science
The peak voltage of an AC source is 400 V. What is the rms voltage?
a. 100 V b. 200 V c. 141 V d. 283 V
Physics & Space Science