Explanation:
Both oceanic crust and continental crust are less dense than the mantle, but oceanic crust is denser than continental crust. ... Because continental crust is less dense than oceanic crust it floats higher on the mantle, just like a piece of Styrofoam floats higher on water than a piece of wood does.
The continental crust is by far the older of the two types of crust.
Hope this helps you out ; )
I think that your answer should be D) the state should make use of satellites and radars because they detect when a storm is coming
The natural frequency of this dowel rod is determined as 0.5 Hz.
<h3>What is frequency?</h3>
The frequency of an object is the number of complete revolutions per second.
F = n/t
where;
- n is number of compete revolution
- t is time
F = 1/2
F = 0.5 Hz
Thus, the natural frequency of this dowel rod is determined as 0.5 Hz.
Learn more about frequency here: brainly.com/question/301048
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If all the mechanical energy is converted into heat that stays in the water. 0.21˚C rise in temperature occurs in a 90.0 m waterfall.
The total kinetic and potential energy is known as mechanical energy. According to the principle of mechanical energy conservation, mechanical energy is constant in an isolated system when only conservative forces are acting on it.
The mechanical energy of water is converted into heat energy.
P.E = mgh = m x 9.8 x 90.0
P.E = 882 m.
Let rise in temperature θ
Heat energy = mass × specific heat × temperature change
Heat energy = m x s x θ
specific heat = 4186 J/(Kg *˚C)
m x s x θ = 882 m
m x 4186 x θ = 882 m
θ = 0.21˚C.
To know more about mechanical energy refer to: brainly.com/question/17051553
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