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iogann1982 [59]
3 years ago
9

A 160 g air-track glider is attached to a spring. The glider is pushed in 11.2 cm and released. A student with a stopwatch finds

that 14.0 oscillations take 19.0 s . You may want to review (Pages 400 - 402) . For help with math skills, you may want to review: Solving Radical Equations For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Mass on a spring. Part A What is the spring constant
Physics
1 answer:
Yanka [14]3 years ago
6 0

Answer:

k = 3.41 N/m

Explanation:

The time period is given as:

T = \frac{time\ taken}{No.\ of\ oscillations} \\\\T = \frac{19\ s}{14} \\\\T = 1.36\ s

Another formula for the time period of the spring-mass system is:

T = 2\pi\sqrt{\frac{m}{k}} \\\\(1.36\ s)^2 = 4\pi^2\frac{0.16\ kg}{k}\\\\k = \frac{(4\pi^2)(0.16\ kg)}{(1.36\ s)^2}\\\\

<u>k = 3.41 N/m</u>

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white star

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3 years ago
A string of length 1.3 m is oscillating in a standing wave pattern. If the tension in the string is 430 N, the string has a mass
Vlad1618 [11]

To solve this problem we will use the concepts related to the speed of a string which is given by the applied voltage and the linear mass density of it. With the speed value we can find the fundamental frequency that will serve as a step to find the maximum speed through the relation of Amplitude and Angular Speed. So:

v = \sqrt{\frac{T}{\mu_e}}

Where,

T = Tension

\mu_e= Linear mass density

v = \sqrt{\frac{430}{0.023}}

v = 136.7m/s

With this value the fundamental frequency would be

f = \frac{v}{2L}

f = \frac{136.7}{2*1.3}

f = 52.6Hz

Finally the maximum speed is given with the relation between the Amplitude (A) and the Angular frequency, then

V_{max} = A\omega

V_{max} = A(2\pi f)

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6 0
4 years ago
A power plant burns fuel to convert water to steam. During the process, 83% of the heat produced is transferred. Of the heat car
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Answer: 33.2\%

Explanation:

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3 years ago
When two oppositely charged electrodes are immersed in a solution, positively charged ions are attracted to the negative electro
e-lub [12.9K]

Answer:

conductivity of solution is reduced.

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When two oppositely charged electrodes are immersed in a solution, positively charged ions are attracted to the negative electrode and gain electrons. The negatively charged ions are attracted to the positive electrode and release electrons.

Due to the process mentioned above , the negatively charged ions are accumulated at the positive electrode and the positively charged ions are accumulated at the negative electrode . This accumulation prevents further attraction of ions at oppositely charged electrodes because the incoming ions face repulsion from already accumulated ions at electrodes.  Further , it creates an emf acting in opposite direction . It reduces the current through the solution. Hence conductivity of solution is reduced.

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3 years ago
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