A 036-Kg Block Rests on a Frictionless Level Surface and Is

question 27

Multiple Choice

A 0.36-kg block rests on a frictionless level surface and is attached to a horizontally aligned spring with a spring constant of 40 N/m.The block is initially displaced 6 cm from the equilibrium point and then released to set up a simple harmonic motion.A frictional force of 0.3 N exists between the block and surface.What is the speed of the block when it passes through the equilibrium point after being released from the 6-cm displacement point?
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• A) 0.55 m/s
• B) 0.39 m/s
• C) 0.77 m/s
• D) 0.3 m/s
• E) 2.19 m/s

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Definitions:

Eukaryotic Cells

Complex cells with a nucleus and other organelles enclosed within membranes.

Cytoplasm

Region of a cell between the nucleus, or the nucleoid region of a bacterium, and the plasma membrane; contains the organelles of the cell.

Translation

The process by which the genetic code carried by mRNA is decoded to produce the specific sequence of amino acids in a polypeptide chain.

Transcription

The process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA) by the enzyme RNA polymerase.