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BlackZzzverrR [31]
3 years ago
10

Alfred wegener said that earths continents are moving which evidence supports this theory

Physics
2 answers:
bearhunter [10]3 years ago
6 0
Similarities in human fossils
Salsk061 [2.6K]3 years ago
4 0

Answer:Wegener knew that fossil plants and animals such as mesosaurs, a freshwater reptile found only South America and Africa during the Permian period, could be found on many continents. He also matched up rocks on either side of the Atlantic Ocean like puzzle pieces. For example, the Appalachian Mountains (United States) and Caledonian Mountains (Scotland) fit together, as do the Karroo strata in South Africa and Santa Catarina rocks in Brazil.

In fact, plates moving together created the highest mountains in the world, the Himalayans, and the mountains are still growing due to the plates pushing together, even now, , according to National Geographic.

Explanation:

Continental drift is the theory that the Earth's continents have moved over geologic time relative to each other, thus appearing to have "drifted" across the ocean bed. ... The concept was independently and more fully developed by Alfred Wegener in 1912, but his theory was rejected by many for lack of any motive mechanism.

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What voltage produces a current of 50 amps with a resistance of 20 ohms?<br>​
PIT_PIT [208]

Answer:

1000 V

Explanation:

Ohm's law:

V = IR

V = (50 A) (20 Ω)

V = 1000 V

5 0
3 years ago
What formula can be used to determine the velocity of an object in free fall?
PtichkaEL [24]
Assuming that you're given either an initial or final velocity, you can use the following equation and solve for the initial or final velocity. 

Vyf² = Vyi² - 2g(y - y₀)

Where, 
Vyf² = final velocity
Vyi₂² = initial velocity
g = 9.81 m/s²
(y - y₀) = the change in the distance along the y-axis.

You'll need also determine the positive and negative of your y-axis for your final solution because velocity can be positive or negative based on direction. Lastly, don't forget to square root both sides of your equation for your velocity. 

I hope this helps. 
4 0
3 years ago
What is the differece between force and motion?​
Jobisdone [24]

Answer:

---

Explanation:

Force is like the amount of push

Motion is the result of Push

6 0
3 years ago
Read 2 more answers
Some runners train with parachutes that trail behind them to provide a large drag force. These parachutes are designed to have a
kirza4 [7]

To solve this problem we will apply the concept of drag force which is described as half the product between the density, the drag coefficient, the area and the squared speed. Said expression mathematically is equivalent to,

F = \frac{1}{2} \rho C_d Av^2

Here,

\rho = Density

C_d = Drag coefficient

A = Area

v = Velocity

Our values are,

A = 1.8*1.8 = 3.24m^2

C_d = 1.4

v = 6m/s

\rho = 1.23kg/m^3  \rightarrow \text{Density of Air}

Replacing at the previous equation we have that,

F = \frac{1}{2} (1.23)(1.4)(3.24)(6)^2

F = 100.42N

Energy can be described through the work theorem, which is the product between force and distance traveled. So,

W = Fd

W = (100.42)(200)

W= 20084J

Therefore the thermal energy is 20.084kJ

3 0
4 years ago
What is the physical state of water at 250°C?
mars1129 [50]
It is probably gas as pure water starts boiling at 100d degrees C
7 0
3 years ago
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