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3 years ago

Which of these statements best explains why P waves arrive earlier than S waves at the seismic station?

Physics

2 answers:

SIZIF [17.4K]3 years ago

8 0

I believe the answer is A. S waves are generated after P waves arrive at the surface

Elanso [62]3 years ago

4 0

Answer:

D. P waves move straight through all medium and S waves move only through solids in a curvy motion

Explanation:

The first kind of wave that is mentioned here is the P wave. This is also called the primary wave. This type of wave can move through solid rock and fluids. Because of this, this is the wave that arrives first at a seismic station. These are compressional waves. On the other hand, S waves are the second type of wave that you feel in an earthquake. These are slower and do not move through liquid mediums.

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Can you please help me figure out the work for the missing quantities?

marysya [2.9K]

Answer: set up proportions

Explanation:

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3 years ago

physics major is cooking breakfast when he notices that the frictional force between the steel spatula and the Dry Steel frying

givi [52]

Answer:0.667 N

Explanation:

Given

It is noticed that Frictional Force is 0.2 N

Coefficient of kinetic Friction $\mu _k=0.3$

We know Friction Force is given by

$f_r=\mu _k\times Normal\ reaction$

therefore

$0.2=\mu _k\times N$

$0.2=0.3\cdot N$

$N=\frac{0.2}{0.3}$

$N=0.667 N$

8 0

3 years ago

Which represent correct variations of the formula for speed? Check all that apply. t = d/s s = d/t t = s/d s = dt d = st d = s/t

vivado [14]

S=d/t this is because speed is just the measurement of time and distance

8 0

3 years ago

Read 2 more answers

If the length of a pendulum is doubled,what will be the change in its time period??

Phantasy [73]

Explanation:

see the attachment.. hope it will help you

6 0

3 years ago

A line in the paschen series of hydrogen has a wavelength of 1880 nm. From what state did the electron originate?

NARA [144]

Answer:

$n=4$

Explanation:

Paschen series of hydrogen, is the series of transitions resulting from the hydrogen atom when electron jumps from a state of $n\geq 4$ to $n_f=3$ .

Emission lines for hydrogen are given by:

$\frac{1}{\lambda}=R_H(\frac{1}{n_f^2}-\frac{1}{n^2})$

$\lambda$ is the wavelength of the line emitted, $R_H$ is the Rydberg constant for hydrogen, $n_f$ is the final energy state of the electron and $n$ is the energy state where the electron transition originated.

We have $\lambda=1880nm=1880*10^{-9}m$ and $n_f=3$ . Solving for n:

$\frac{1}{\lambda R_H}=\frac{1}{n_f^2}-\frac{1}{n^2}\\\frac{1}{n^2}=\frac{1}{n_f^2}-\frac{1}{\lambda R_H}\\n^2=\frac{1}{\frac{1}{n_f^2}-\frac{1}{\lambda R_H}}\\n^2=\frac{1}{\frac{1}{3^2}-\frac{1}{1880*10^{-9}m(1.09737*10^7m^{-1})}}\\n^2=15.96\\n=4$

6 0

4 years ago