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2 years ago

A simple pendulum has length of 820mm. Calculate the frequency (g = 9.8 ms -2)

Physics

1 answer:

Vadim26 [7]2 years ago

7 0

Answer:

$\huge\boxed{\sf f=0.55 \ Hz}$

Explanation:

Given Data:

Length = l = 820 mm = 0.82 m

Acceleration due to gravity = g = 9.8 ms⁻²

Required:

Frequency = f = ?

Formula:

$\displaystyle f =\frac{1}{2 \pi} \sqrt{\frac{g}{l} }$

Solution:

$\displaystyle f =\frac{1}{2 \pi} \sqrt{\frac{g}{l} } \\\\Put\ the\ givens\\\\f=\frac{1}{2 \pi} \sqrt{\frac{9.8}{0.82} }\\\\ f = 0.159 \times \sqrt{11.95} \\\\f=0.159 \times 3.457\\\\f=0.55 \ Hz\\\\\rule[225]{225}{2}$

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3 years ago

(a) Calculate the absolute pressure at the bottom of a freshwater lake at a point whose depth is 30.0 m. Assume the density of t

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Answer:

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Explanation:

(a)

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For the force exerted

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P = F/A

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and A is the area

Then, F = P × A

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3 years ago

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4 years ago

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Ostrovityanka [42]

Answer:

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$v=\frac{q}{A}\\v=\frac{1\, \frac{ft^3}{min}}{12.5\, ft^2}\\v=0.08\, \frac{ft}{min}$

where q is the water flow (1 cubic foot per minute).

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3 years ago

A simple pendulum has length of 820mm. Calculate the frequency (g = 9.8 ms -2)​

A simple pendulum has length of 820mm. Calculate the frequency (g = 9.8 ms -2)