Consider a situation where you carry a 20 N box up a flight of stairs, raising its elevation by 5 m. You drop the box. As it falls to its original level, its kinetic energy is
a. 0 c. 100 J
b. 4 J d. none of the above
C
Physics & Space Science
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An object is moving in a circular path of radius R. If the object moves through an angle of 30.0 degrees, then the angle is
A. 0.22 radians. B. 0.52 radians. C. 0.75 radians. D. 1.30 radians. E. 1.75 radians.
Physics & Space Science
A 2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kN. What is the frequency of the fundamental mode?
A) 204 Hz B) 102 Hz C) 408 Hz D) 510 Hz E) 153 Hz
Physics & Space Science
An object that is 2.0 cm tall is placed at the center of curvature in front of a concave mirror. How tall is its image?
A) 0.50 cm B) 1.0 cm C) 1.5 cm D) 2.0 cm E) infinite
Physics & Space Science
An object that has zero resistance is a __________
Fill in the blank(s) with correct word
Physics & Space Science