Answer:
b. wind waves, seiches, tsunami, tides.
Explanation:
The wavelength of water waves is calculated measuring the distances between the trough (low point) portion of a wave. Usually, the bigger the wave, the greater the wavelength.
wind waves: small waves caused by the wind. These waves tend to be small and with a short wavelength.
seiches: are usually waves on a lake or other closed water bassin. They can be pretty high from a human perspective, so they are definitely bigger than wind waves.
tsunami: we all know how big the waves of a tsunami can be, totally wiping out coastal cities they encounter, so that's pretty big waves, and big waves tend to be larger apart (so with a bigger wavelength) than smaller ones.
tides: yes, a tide can be considered as a huge wave... that's running throughout the planet. We barely see it as a wave because we can only see one wave at a time, the next wave being tens of thousands of mile away.
Answer:
The age of the rock = 2800.6 million years = 2.8 billion years.
A simple method of analysis similar to Carbon dating is used to obtain the required age of the rock. Radioactive substances decay according to first order reaction kinetics. So, plugging all the required parameters into the general equation for amount of substance left in a first order decay gives us the age of the rock.
Explanation:
Half life of Uranium-235 = 700 million years (from literature)
The decay of radioactive substances follow first order reaction kinetics.
The general equation is given as
A(t) = A₀ e⁻ᵏᵗ
A(t) = Amount of radioactive substance left after a particular time = 6.25%
A₀ = initial amount of radioactive substance = 100%
t = time that has passed since the beginning = age of the rock = ?
k = decay constant
The decay constant is related to the half life (T) through the relation,
k = (In 2)/T
k = (0.693/700) = 0.00099 /million years
A(t) = A₀ e⁻ᵏᵗ
6.25 = 100 e⁻ᵏᵗ
0.0625 = e⁻ᵏᵗ
In e⁻ᵏᵗ = In 0.0625 = -2.7726
-kt = - 2.7726
t = (2.7726/0.00099) = 2800.6 million years
t = 2.8 billion years.
Hope this Helps!!!
Answer:
An effect of the Peloponnese war was that Macedonia invaded Greece.
Explanation:
The Peloponnese war was a war between Sparta and Athens, with Sparta coming out as a victor in it. The lack of political absence of Athens for some time in the region because of the engagement in the war with Sparta gave opportunity the Macedonians to be able to speed up their progress, implement reforms, and rapidly become a force to be reckoned with.
The Macedonians managed to reform their army and strengthen their economy, and for the Hellenic city-states, this was not a good sign. Phillip II of Macedon attacked the Hellenic city-states and defeated them all, causing a huge loss in military personnel. One city-state that saved itself was Sparta, and there are two reasons for it, one is that they were in good relations with the Macedonians and often allied, and the other because it was of interest to any of the two sides to go in war against each other and suffer losses unnecesarilly.
We learn about this in my class A.
Answer:
D
Explanation:
Fewer jobs will be available due to the program ending, and fewer people will come to see shuttle launches and such.
