A peregrine falcon dives at a pigeon. The falcon starts with zero downward velocity and falls with the acceleration of gravity. If the pigeon is 76.0 m below the initial height of the falcon, how long does it take the falcon to intercept the pigeon?
3.94 s
Physics & Space Science
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In a spectroscopic binary, the star whose lines shift the most weighs the most
Indicate whether the statement is true or false
Physics & Space Science
Fifteen microseconds is
a. 0.0000015 s. b. 0.000015 s. c. 0.00015 s. d. 0.015 s. e. 15000000 s.
Physics & Space Science
The unit of inductance, the henry, is equivalent to:
a. J/C. c. V•s/A. b. V/m. d. none of the units given.
Physics & Space Science
Wire A is twice as long as wire B but is otherwise identical. Both have the same potential difference between their ends. How do the currents flowing in these wires compare?
A. /A = 4/B B. /A = 2/B C. /A = /B D. /A = (1/2)/B E. /A = (1/4)/B F. Other (specify) T. It is impossible to say given the provided information.
Physics & Space Science