All categories

2 years ago

In the aftermath of an intense earthquake, the earth as a whole "rings" with a period of 54 minutes.

Physics

1 answer:

lawyer [7]2 years ago

6 0

The frequency of the oscillation in hertz is calculated to be 0.00031 Hz.

The frequency of a wave is defined as the number of cycles completed per second while the period refers to the time taken to complete a cycle. The frequency is the inverse of period.

So;

Period(T) = 54 minutes or 3240 seconds

Frequency (f) = T-1 = 1/T = 1/3240 seconds = 0.00031 Hz

Learn more: brainly.com/question/14588679

You might be interested in

If you triple the speed from 20km/h to 60km/h, by what factor does the KE increase?

sertanlavr [38]

Answer:

The kinetic energy increases by a factor of 9

Explanation:

Kinetic Energy

It's the energy related to the speed of an object and is calculated by the formula

$\displaystyle K=\frac{mv^2}{2}$

Let's suppose the initial speed of the mass is $v_o$ , then the kinetic energy is

$\displaystyle K_o=\frac{mv_o^2}{2}$

Now the speed will triple, i.e. $v_1=3v_o$ . The new kinetic energy is

$\displaystyle K_1=\frac{mv_1^2}{2}$

$\displaystyle K_1=\frac{m(3v_o)^2}{2}$

$\displaystyle K_1=9\frac{mv_o^2}{2}$

Thus

$K_1=9K_o$

The kinetic energy increases by a factor of 9

Let's check with numbers: $v_o=20,\ v_1=60$

$\displaystyle K_o=\frac{m20^2}{2}=200m$

$\displaystyle K_1=\frac{m60^2}{2}=1800m$

The relation is

$\displaystyle \frac{K_1}{K_o}=9$

The new kinetic energy is nine times the initial kinetic energy.

5 0

3 years ago

The valid digits in a measurement are called _____ digits.

Harman [31]

Answer:

Significant

Explanation:

As the word suggests, significant figures or digits are numbers that are valid in measurement.

8 0

3 years ago

Read 2 more answers

Explain why an ordinary bar magnet doesn’t rotate and align itself with Earth’s magnetic field when you place it on a table.

Over [174]

Cause static friction

3 0

3 years ago

13. What is the ground state?

pentagon [3]

Answer:

Explanation:

because I took the test

7 0

3 years ago

Where would you feel the most motion?

Mrac [35]

Answer:

Explanation:

since its the tip, you will feel it the most there.

4 0

3 years ago