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Xelga [282]
3 years ago
6

Although he did not present a mechanism, what were the key points of Alfred Wegener’s proposal for the concept of continental dr

ift?
Physics
1 answer:
valentinak56 [21]3 years ago
4 0

Answer: Alfred Wegener provided some of the important points that supported the theory of continental drift. They are as follows-

  1. The continents were once all attached together, and this can be proved by studying the coastlines of some of the continents that perfectly matches with one another.
  2. The appearance of similar rock types and similar fossils (including both animals and plants) has also contributed much information that continents were once all together.
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How many protons would the element with the atomic number 10 contain?
galben [10]
The atomic number is the same as the proton number so the answer would be D) 10
3 0
3 years ago
A closed container initially holds 50 monatomic Aparticles that have a combined energy of 480 units. After 100 monatomic B parti
Molodets [167]

Answer:

"8 units" is the appropriate answer.

Explanation:

According to the question,

Throughout equilibrium all particles are of equivalent intensity, and as such the integrated platform's total energy has been uniformly divided across all individuals.

Now,

The total energy will be:

= 480+720

= 1200 \ units

The total number of particles will be:

= 50+100

= 150

hence,

Energy of each A particle or each B particle will be:

= \frac{1200}{150}

= 8 \ units

5 0
3 years ago
Identify which best describes the energy used to pluck guitar strings to make sound.
Novay_Z [31]
<span>The correct answer is: Mechanical Energy

Explanation:
As the guitar strings are plunked, the potential energy stored in the strings has an ability to make them vibrate. When the strings are vibrating, that potential energy is actually converted to the kinetic energy. Hence, the whole phenomena contains both the kinetic energy and the potential energy. The sum of kinetic energy and the potential energy is called Mechanical energy. Therefore, the correct answer is Mechanical Energy.</span>
8 0
3 years ago
Read 2 more answers
Gold has a higher density than tin? True or false
Ganezh [65]

Answer:

True. Gold does have a higher density than tin

3 0
3 years ago
All of the alkali metals, Group 1, have one valence electron. Which of these would represent the oxidation number of the alkali
melamori03 [73]
The elements found in the Group 1, or the Alkali Metal Group, have electronic configurations that end in s^{1}.This means that they have 1 electron readily available to release in order to achieve a stable state. 

When these atoms release the valence electron, they will achieve a stable state. For example, Lithium's stable state will be Li^{+} and Sodium will be Na^{+}. 

The oxidation state will then be +1. 

The answer is C. 


8 0
3 years ago
Read 2 more answers
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