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3 years ago

A spring vibrates 120 times in 2 mins find its frequency and time period

Physics

1 answer:

german3 years ago

3 0

2 minutes is 120 seconds, so if you were finding vibrations per minute, it would be 60 times a minute.

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3 years ago

Lexy says that the diffraction angle is the one labeled R, and Jin says that the diffraction angle is the one labeled S. Which b

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3 years ago

A 30 g mass is attached to one end of a 10-cm-long spring.

Usimov [2.4K]

The value of the spring constant of the spring is 14.7 N/m.

The given parameters;

mass attached to the spring, m = 30 g
length of the spring, L₀ = 10 cm
angular speed of the mass = 90 rpm
final length of the spring, L₁ = 12 cm

The extension of the spring is calculated as follows;

$\Delta x = L_1 - L_0\\\\\Delta x = 12 \ cm - \ 10 \ cm\\\\\Delta x = 2 \ cm = 0.02 \ m$

The value of the spring constant of the spring is calculated by applying Hooke's law;

$F = mg = k\Delta x\\\\k = \frac{mg}{\Delta x } \\\\k = \frac{0.03 \times 9.8}{0.02} \\\\k = 14.7 \ N/m$

Learn more about Hooke's law here:brainly.com/question/4404276

4 0

3 years ago

A revolving searchlight on an island 6 miles from shore turns at the rate of 2 revolutions per minute in the clockwise direction

Molodets [167]

Answer:

Revolving velocity = 2 km/s

Explanation:

Velocity of circular motion = Radius x Angular velocity.

Angular velocity, ω = 2πf, where f is the frequency of circular motion.

Here frequency, f = 2 revolutions per minute

f = $\frac{2}{60} =0.033$ revolutions per second.

Angular velocity, ω = 2πf = 0.209 radians/second.

Radius = 6 miles = 6 x 1.6 x 10³ = 9.6 x 10³ m.

Linear velocity = 9.6 x 10³ x 0.209 = 2006.4 m/s= 2 km/s

Revolving velocity = 2 km/s

8 0

3 years ago

A spring vibrates 120 times in 2 mins find its frequency and time period​

A spring vibrates 120 times in 2 mins find its frequency and time period