The time it takes a projectile fired straight up at 10 m/s to reach the top of its path is about
A) 1 s.
B) 2 s.
C) 10 s.
D) not enough information
Answer: A
Physics & Space Science
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Another name for electric potential difference is ______________
Fill in the blank(s) with correct word
Physics & Space Science
A hockey puck slides off the edge of a table with an initial velocity of 28.0 m/s. The height of the table above the ground is 2.00 m. What is the angle below the horizontal of the velocity of the puck just before it hits the ground?
A) 77.2° B) 72.6° C) 12.8° D) 12.6° E) 31.8°
Physics & Space Science
What rms current flows in a 60-mH inductor when 120-V rms ac at a frequency of 20 kHz is applied to it?
A) 8.0 mA B) 16 mA C) 24 mA D) 32 mA
Physics & Space Science
A one-way mirror works because of
a. interference b. diffraction c. its surfaces being half-silvered d. dispersion e. polarization
Physics & Space Science