Mass on a Spring: A 0.39-kg block on a horizontal frictionless surface is attached to an ideal spring whose force constant (spring constant) is 570 N/m. The block is pulled from its equilibrium position at x = 0.000 m to a displacement x = +0.080 m and is released from rest. The block then executes simple harmonic motion along the horizontal x-axis. When the position of the block is x = 0.057 m, its kinetic energy is closest to
A. 0.90 J.
B. 0.84 J.
C. 0.95 J.
D. 1.0 J.
E. 1.1 J.
Answer: A
You might also like to view...
The most important idea in De Revolutionibus was placing the Sun at the center of the Universe
a. True b. False Indicate whether the statement is true or false
If the length of a box is reduced by one-third and the width and height are doubled, by what factor has the volume changed?
A. 4/3 B. 2/3 C. 3/4 D. 3/2
A geologist suspends a 0.30-kg stone on an ideal spring. In equilibrium the stone stretches the spring 2.0 cm downward
The stone is then pulled an additional distance of 1.0 cm down and released from rest. (a) Write down the equation for the vertical position y of the stone as a function of time t, using the cosine function. Take the origin at the equilibrium point of the stone, with the positive y direction upward. (b) How fast is the stone moving at a time equal to 1/3 of its period of motion?
It is possible to decrease the entropy of a system locally without doing work on the system
What will be an ideal response?