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4 years ago

What are the three key points to seismic waves

1 answer:

6 0

Earthquakes produce three types of seismic waves: primary waves, secondary waves, and surface waves. Each type moves through materials differently. In addition, the waves can reflect, or bounce, off boundaries between different layers.

three key points:

1. they all change the earth by shifting plates in different ways.

2. these waves lead to our plates form today, which are always changing.

3. even the smallest earthquakes make the slightest changes to our ground. and many happen in just a day! we just never feel it.

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2.5 years into minutes?<br><br>

Mnenie [13.5K]

Is it 1314000 Or something

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3 years ago

A 96.0 kg hoop rolls along a horizontal floor so that its center of mass has a speed of 0.240 m/s. How much work must be done on

Ede4ka [16]

Answer:

The work done by the hoop is equal to 5.529 Joules.

Explanation:

Given that,

Mass of the hoop, m = 96 kg

The speed of the center of mass, v = 0.24 m/s

To find,

The work done by the hoop.

Solution,

The initial energy of the hoop is given by the sum of linear kinetic energy and the rotational kinetic energy. So,

$K_i=\dfrac{1}{2}mv^2+\dfrac{1}{2}I\omega^2$

I is the moment of inertia, $I=mr^2$

Since, $\omega=\dfrac{v}{r}$

$K_i=mv^2$

$K_i=96\times (0.24)^2=5.529\ J$

Finally it stops, so the final energy of the hoop will be, $K_f=0$

The work done by the hoop is equal to the change in kinetic energy as :

$W=K_f-K_i$

W = -5.529 Joules

So, the work done by the hoop is equal to 5.529 Joules. Therefore, this is the required solution.

4 0

3 years ago

When completely filled with water, the beaker and its contents have a total mass of 326.75 g. What volume does the beaker hold?

miv72 [106K]

Answer:

0.003060 cm³

Explanation:

Mass of water = m = 326.75 gram

Density of water = ρ = 1.00 g/mL = 1 g/cm³

density = mass / volume

⇒volume = density / mass

⇒volume = 1 / 326.75

⇒Volume = 0.0030604 cm³

∴ Volume held by beaker = 0.0030604 cm³

Here the combined mass of the beaker and water is given so the volume found will be of the beaker as well as the liquid. But, it can be seen that the volume is so small that subtracting the beaker mass would have negligible effect.

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3 years ago

Which of the following refers to a force acting toward the center of a circular

Masja [62]

Answer:

D. Centripetal Force :)

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3 years ago

Study the images above. Choose all of the statements below that are true regarding wave energy.

Dafna1 [17]

Answer:

1) Letter J identifies the wavelength of the wave.

4) If letter G was longer, The wave would have more energy.

6) The wavelength of a microwave is larger than that of an x-ray.

Explanation: Just did it on USA Test Prep

3 0

3 years ago

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What are the three key points to seismic waves​

What are the three key points to seismic waves