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3 years ago

6

An arrow is used to show a force acting on an object. what information does the arrow give about the force

1 answer:

Vedmedyk [2.9K]3 years ago

6 0

The Force surrounds us and penetrates us. It flows through Jedis. May the Force be with you all.

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Describe the conditions which will cause a rock fracture!<br> Plz hurry

Naya [18.7K]

Answer:

A fracture will sometimes form a deep fissure or crevice in the rock. Fractures are commonly caused by stress exceeding the rock strength, causing the rock to lose cohesion along its weakest plane. Fractures can provide permeability for fluid movement, such as water or hydrocarbons.

Explanation:

5 0

4 years ago

Consider a pendulum of length 3. 171 m. The acceleration of gravity is 9. 832 m/s2. A) what is its period at the north pole?answ

ch4aika [34]

The period of the pendulum of length 3. 171 m when acceleration of gravity is 9. 832 m/s, is 3.57 seconds.

<h3>What is time period of pendulum?</h3>

Pendulum is the body which is pivoted to a point and perform back and forth motion around that point by swinging due to the influence of gravity.

The time period of a pendulum is the time taken by it to complete one cycle of swing left to right and right to left.

It can be given as,

$T=2\pi \sqrt{\dfrac{L}{g}}$

Here, (g) is the gravitational force of Earth and (L) is the length of the pendulum.

A pendulum of length 3.171 m. The acceleration of gravity is 9.832 m/s2. The period at the north pole is,

$T=2\pi \sqrt{\dfrac{3.171}{9.832}}\\T=3.57\rm\; s$

Thus, the period of the pendulum of length 3. 171 m when acceleration of gravity is 9. 832 m/s, is 3.57 seconds.

Learn more about the time period of pendulum here;

brainly.com/question/3551146

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4 0

2 years ago

A drum rotates around its central axis at an angular velocity of 19.8 rad/s. If the drum then slows at a constant rate of 3.02 r

Debora [2.8K]

a) Time taken =6.39 s

b) Angle of rotation while coming to rest = 188.17 rad

<u>Explanation:</u>

Initial angular velocity of the drum $\omega_{0} = 19.8 rad/s^{2}$

Angular acceleration of the drum $\alpha = -3.02 rad/s^{2}$

a.) We know that

$\omega =\omega_{0} + \alpha t$

$0 = 19.8 - 3.02 t$

$t = \frac{19.8}{3.02}$

$t = 6.39s$

b.) we know that

$\theta = \omega_{0} t + \frac{1}{2} \alpha t^{2}$

$\theta = 19.8 \times 6.39 + \frac{1}{2} \times 3.02 \times 6.39^{2}$

$\theta =188.17 rad$

3 0

4 years ago

What is the half-life of an isotope if 125 g of a 500 g sample of the isotope remains after 3.0 years?

Troyanec [42]

Answer:

125 / 500 = 1/4 of the sample left after 3.0 yrs

1/2 * 1/2 = 1/4 sample has decayed thru 2 half-lives

2 * HL = 3

1 Half-Life = 1.5 yrs

3 0

2 years ago

A wave moves in a rope with a certain wavelength. A second wave is made to move in the same rope with twice the wavelength of th

Stolb23 [73]

Answer:

The frequency of the second wave is half of the frequency of first one.

Explanation:

The wavelength of the second wave is double is the first wave.

As we know that the frequency is inversely proportional to the wavelength of the velocity is same.

velocity = frequency x wavelength

So, the ratio of frequency of second wave to the first wave is

$\frac{f_2}{f_1} =\frac{\lambda _1}{\lambda _2}\\\\\frac{f_2}{f_1} =\frac{\lambda _1}{2\lambda _1}\\\\\frac{f_2}{f_1} =\frac{1}{2}\\\\$

The frequency of the second wave is half of the frequency of first one.

7 0

3 years ago