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Setler [38]
2 years ago
10

You know that Alfred Wegener’s ideas were not immediately accepted. What evidence was found that convinced his contemporaries (p

eople who lived at the same time he lived) to eventually begin to accept his theory of continental drift?
Physics
1 answer:
Debora [2.8K]2 years ago
7 0

Answer:

The apparent fit of the eastern coastline of South America and western coastline of Africa

Similarities of plants and animal fossils in South America and some parts of African continent which were separated by a vast ocean

Similarities in the sequence of rock layers of opposite sides of the Atlantic Ocean

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2 years ago
Potassium ions (K+) move across a 7.0 -mm- thick cell membrane from the inside to the outside. The potential inside the cell is
Reil [10]

Explanation:

Relation between potential energy and charge is as follows.

           U = qV

or,    \Delta U = q \times \Delta V

                   = 1.6 \times 10^{-19} \times 70 \times 10^{-3}

                   = 112 \times 10^{-22} J

or,                = 1.12 \times 10^{20} J

Therefore, we can conclude that change in the electrical potential energy \Delta U is 1.12 \times 10^{20} J.

7 0
2 years ago
Looking straight downward into a rain puddle whose surface is covered with a thin film of gasoline, you notice a swirling patter
Ivanshal [37]

Answer:

 

Explanation:

Point beneath you forms a beautiful iridescent green

refractive index of Gasoline n=1.38

Wavelength of Green light is \lambda =540\ nm

Here light first traverse from air(n=1) to gasoline , it reflects from  front surface of gasoline(n=1.38) so it suffers a phase change. After this light reflect from rear surface of gasoline and there is a decrease in refractive index(n=1.38 to n=1.33), so there is no phase change occurs .

For constructive interference

2t=(m+\frac{1}{2})\cdot \frac{\lambda }{n}

here t= thickness of gasoline film

n=refractive index

for m=0

t=\frac{\lambda }{4n}

t=\frac{540}{4\times 1.38}

t=97.82\approx 98\ nm                                                      

4 0
2 years ago
If humans are the most complex creature, does that mean they have the most number of chromosomes?
Bezzdna [24]
Yes. Either way though, humans have more chromosomes than any other species.

5 0
3 years ago
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1. If we increase the distance to twice it's original value, the light intensity is reduced by one-fourth, the light intensity would be:
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2. rms magnetic field is inversely proportional to distance, so the new rms magnetic field would be:
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3. average energy density is inversely proportional to the square of the distance, so the new average energy density is:
E0/4
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3 years ago
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