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attashe74 [19]
3 years ago
10

Which explains how fossils for used as evidence about the theory of continental drift

Physics
2 answers:
Verdich [7]3 years ago
8 0
Scientist use fossils because they put them in one area but find them halfway across the world meaning there use to be animals moving around and couldn't have swam across the sea so it shows everything was once together, Pangaea, and animals moved across the land before it split.
AleksandrR [38]3 years ago
4 0
When the continental drift occured, it moved all the land on earth around, therefore changing climates. If fossils of animals are found on a certain continent that doesn't support that species, it proves the drift happened because the climate used to be suitable for them, but now is not.
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Both cars start from the same point. Which describes the motion shown?
evablogger [386]
Is there a graph we can look at?
4 0
4 years ago
Read 2 more answers
At a certain location, wind is blowing steadily at 10 m/s. Determine the mechanical energy of air per unit mass and the power ge
Effectus [21]

Answer:

X=3976.078202kW \approx 3976kW

Explanation:

From the question we are told that

Wind speedV_w=10m/s

Turbine blade diameter D=90m

Air density  \tau=1.25kg/m^3

Mechanical energy K.E =0.05kJ/kg

Generally the power generation potential of the wind turbine X is mathematically given as

  X=m'*K.E

Where

m'=\tau *\pi*D^2/4*V

m'=1.25 *\pi*90^2/4*10

m'=79521.56404kg/s \approx 79521.5kg/s

Therefore

X=m'*K.E

X=79521.56404*0.05

X=3976.078202kW \approx 3976kW

X=4.0MW

4 0
3 years ago
The sun's radiation has different wavelengths. the shorter is the radiation's wavelength, the weaker is the radiation's energy.
NeX [460]
It is false. Because the amount of energy carried in the wave is inversely related to the length of the waves wavelength. To correct the statement it should be that the shorter the radiation's wavelength the stronger is the radiation's energy.
7 0
3 years ago
Mary travelled 70mph due north
tiny-mole [99]
Velocity because It is defined as the change in the position with respect to the time. Velocity is a vector quantity that means it depends on the magnitude and direction of an object. The S.I unit of velocity is, m/s

Acceleration : It is defined as the rate of change of velocity of an object wit respect to the time. Acceleration is a vector quantity that means it depends on the magnitude and direction of an object. The S.I unit of acceleration is, m/s to the power of 2

Distance : It is defined as the how far an object has traveled in time. Distance is a scalar quantity that means it is depends on the magnitude of an object only. The S.I unit of distance is, m

Speed : It is defined as the distance traveled by an object in unit time. Speed is also a scalar quantity. The S.I unit of speed is, m/s

Mary traveled 70 miles/hour due north. This is an example of velocity. 70 miles/hour tell us about the magnitude of the object and north tell us about the direction of an object.
Hence, the correct option is, velocity.







3 0
3 years ago
What is the acceleration of an arrow that has a mass of 0.1 kg and a force of 9 N?
VikaD [51]

F = ma

f/m = a

9/0.1 = 90 m/s^2

so the answer is 90 m/s^2

7 0
3 years ago
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