How do you find the difference in the arrival times of the p waves and the s waves?

It is a continuing process of forming regions as geopolitical units, as organized political cooperation within a particular grou

xxMikexx [17]

Answer:

Regionalism

Explanation:

Regionalism is one of the political ideologies that focuses on the welfare and progression of a region particularly. The region can be a divided on the terms of religion, administration, culture and language. Regionalists intend towards the progression, development and upliftment of the people living in the region. This helps in brining the state, society and people come in contact and share certain responsibilities towards each other.

5 0

2 years ago

Plz Help me Asap! Plz show work to !

Monica [59]

Answer:

A

Explanation:

Let's say x represents adult tickets, and y represents child tickets.

We know that 2 adult tickets, x, and 2 child tickets, y, added together total $26. This can be written as:

2x+2y=26

We also know that 2 adult tickets, x, and 3 child tickets, y, added together total $31. This can be written as:

2x+3y=31

So, our system is:

2x+2y=26

2x+3y=31

Therefore, choice A is correct.

5 0

3 years ago

In the Earth’s desert biomes, which of the following challenges must be met by animals?

Over [174]

The answer is: [D]: "adapting to droughts and few sources of water" .
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4 0

3 years ago

Read 2 more answers

Imagine that you have obtained spectra for several galaxies and have measured the observed wavelength of a hydrogen emission lin

Lerok [7]

Answer:

A. z (galaxy 1) = -0.00515, z (galaxy 2) = -0.01707, z (galaxy 3) = -0.04008

B. v (galaxy 1) = -0.00517c, v (galaxy 2) = -0.01707c, v (galaxy 3) = -0.0401c

C. d (galaxy 1) = -21 Mpc,d (galaxy 2) = -69.4 Mpc, d (galaxy 3) = -163 Mpc

Explanation:

We begin by listing out the parameters we were given:

λ (obsv) = 656.3 nm, λ (emit 1) = 659.7 nm, λ (emit 2) = 667.7 nm,

λ (emit 3) = 683.7 nm

A) Using the Redshift formula, we have:

z = [λ (obsv) - λ (emit)] ÷ λ (emit)

For galaxy 1:

z = [λ (obsv) - λ (emit 1)] ÷ λ (emit 1)

z = (656.3 - 659.7) ÷ 659.7 = -0.00515

z = -0.00515

For galaxy 2:

z = [λ (obsv) - λ (emit 2)] ÷ λ (emit 2)

z = (656.3 - 667.7) ÷ 667.7 = -0.01707

z = -0.01707

For galaxy 3:

z = [λ (obsv) - λ (emit 3)] ÷ λ (emit 3)

z = (656.3 - 683.7) ÷ 683.7 = -0.04008

z = -0.04008

B) Using the Doppler formula, we have:

(Δλ ÷ λ) = v ÷ c

v = c * (Δλ ÷ λ)

but, z = (Δλ ÷ λ)

⇒ v = c * z

speed of light (c) = 3 x $10^{8}$ m/s

For galaxy 1:

v = c * z

Substitute z into the equation calculated from A) above

v = 3 x $10^{8}$ * (-0.00515)

v = -1.55 x $10^{6}$ m/s

v = -0.00517c

For galaxy 2:

v = c * z

Substitute z into the equation calculated from A) above

v = 3 x $10^{8}$ * (-0.01707)

v = -5.12 x $10^{6}$ m/s

v = -0.01707c

For galaxy 3:

v = c * z

Substitute z into the equation calculated from A) above

v = 3 x $10^{8}$ * (-0.04008)

v = -12.03 x $10^{6}$ m/s

v = -0.0401c

N.B: the negative value of velocity connotes that the galaxies are moving away from us (not towards us)

C) Using Hubbleʹs law, we have:

v = H · d

where:

v = velocity of a galaxy (km/s), d = distance (Mpc),

H = Hubble's constant (km/s/Mpc) = 73.8 km/sec

d = v ÷ H

We use the velocities calculated in B) above

For galaxy 1:

v = -1.55 x $10^{3}$ km/s

d = -1.55 x $10^{3}$ ÷ 73.8

d = -21 Mpc

For galaxy 2:

v = -5.12 x $10^{3}$ km/s

d = -5.12 x $10^{3}$ ÷ 73.8

d = -69.4 Mpc

For galaxy 3:

v = -12.03 x $10^{3}$ km/s

d = -12.03 x $10^{3}$ ÷ 73.8

d = -163 Mpc

N.B: distance cannot be a negative value

4 0

3 years ago

How did Sulla reorganize Rome’s governmental structure in 82 BCE?

Anna007 [38]

"Sulla took control of Rome in late 82 and early 81 BC after victories in the civil war of his own making, and those of his chief legate Pompeius Magnus. ... Sulla not only butchered the constitution through various reforms he would make, but also focused his power on the leading members of the Roman ruling classes." This quote should help!

6 0

3 years ago