The bob of a simple pendulum has its maximum kinetic energy at the
A) top of its swing.
B) bottom of its swing.
C) midpoint between top and bottom.
D) at all points along its path of swing.
Answer: B
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What is the mass of a 1.25 m long piano wire that has a fundamental frequency of 256 Hz when under a tension of 138 N?
A. 6.4 g B. 1.7 g C. 3.4 g D. 41 g E. 4.1 g
The visible surface of the Sun is called the ______________
Fill in the blank(s) with correct word
The process of obtaining energy by merging small nuclei is called
a. fission. b. fusion. c. nucleogenesis. d. bombardment.
What is kinetic energy?
a. The energy stored in a dry cell. b. The energy an object has because of its position. c. The energy an object such as a spring has because of its shape. d. The energy an object has because of its motion. e. The energy that two objects at rest have because of their gravitational attraction.