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Dafna11 [192]
3 years ago
7

A simple pendulum consists of a mass M attached to a string oflength L andnegligible mass. For this system, when undergoing smal

loscillations,a) the frequency is proportional to the amplitude.b) the period is proportional to the amplitude.c) the frequency is independent of the mass M.d) the frequency is independent of the length L
Physics
1 answer:
PilotLPTM [1.2K]3 years ago
8 0

The frequency of the pendulum is independent of the mass on the end. (c)

This means that it doesn't matter if you hang a piece of spaghetti or a school bus from the bottom end.  If there is no air resistance, and no friction at the top end, and the string has no mass, then the time it takes the pendulum to swing from one side to the other <u><em>only</em></u> depends on the <u><em>length</em></u> of the string.

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Two students walk in the same direction along a straight path, at a constant speedâone at 0.90 m/s and the other at 1.90 m/s.
mixer [17]

Answer:

456.143684211 seconds

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Explanation:

s = Distance

v = Velocity

Time is given by

t=\dfrac{s}{v}\\\Rightarrow t=\dfrac{780}{0.9}\\\Rightarrow t=866.67\ s

t=\dfrac{s}{v}\\\Rightarrow t=\dfrac{780}{1.9}\\\Rightarrow t=410.526315789\ s

Difference in time = 866.67-410.526315789 = 456.143684211 seconds

According to the question

\dfrac{x}{0.9}-\dfrac{x}{1.9}=5.5\times 60\\\Rightarrow x(\dfrac{1}{0.9}-\dfrac{1}{1.9})=330\\\Rightarrow x=\dfrac{330}{\dfrac{1}{0.9}-\dfrac{1}{1.9}}\\\Rightarrow x=564.3\ m

The students would have to walk 564.3 m

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What is the number of the lowest energy level that contains an f sublevel?. . 3. . 4. . 5. . 6
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Answer:

In the words of Hartshorn and Alexander: “Economic Geography is the study of the spatial variation on the earth’s surface of activities related to producing, exchanging and consuming goods and services. Whenever possible the goal is to develop generalizations and theories to account for these spatial variations.”

Explanation:

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If we use

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And
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