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1. A mass of 0.019 kg attached to a spring with spring constant 27.0 N/m is...

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Physics

1. A mass of 0.019 kg attached to a spring with spring constant27.0 N/m is pulled to the right 8.0 cm and released. The massoscillates with a frequency of 6.0 Hz. If the mass is pulled to theright 16.0 cm before being released, what is the frequency?

a. 6.0 Hz

b. 3.0 Hz

c. 1.5 Hz

d. 12 Hz

e. 24 Hz

2. A window loses power/heat energy through a pane of glass tothe cold outside. If the thickness of the glass is doubled and thearea of the glass is halved, then the power loss to the coldoutside will be?

a. one half of the original power loss

b. twice the original power loss

c. the same as the original power loss

d. four times the original power loss

e. one quarter of the original power loss

3. A skater spins on ice. When she pulls in her arms, shereduces her rotational inertia and her angular speed increases.Compared to her initial rotational kinetic energy, the rotationalkinetic energy when she has pulled in her arms must be?

a. smaller

b. the same

c. larger

Answer & Explanation Solved by verified expert
3.7 Ratings (394 Votes)
1 The equation of the frequency of the oscillation on a spring f 12 km And from the equationit is clear that the frequency is indipendent of the displacement x So frequency remain same So the Correct    See Answer
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