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Lera25 [3.4K]
3 years ago
7

All atomic nuclei except those of ordinary hydrogen contain neutrons true or false

Physics
1 answer:
MatroZZZ [7]3 years ago
8 0
The answer to this question is False
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The next closest star to Earth, Proxima Centuri, is 4.25 lightyears away. How far is that in meters?
lozanna [386]

Answer:

4.0208 x 10^16 meters

Explanation:

speed of light in m/s   *      # seconds in a year      * 4.25 years =

2.99792 x 10^8   *        3600*24*365.25  *     4.25 = 4.0208 x 10^16 m

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2 years ago
What's the relationship between work done and force applied
saveliy_v [14]
When a force acts on a body along some path, the work done is W=F*s, where W is the work done, F is the force that is doing the work on the body and s is the path. The force doing the work has to be in the same direction, or parallel, as the path. This is called positive work. If the force and the path are anti-parallel, the work is negative. So the relationship between work and force is W=F*s. 
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3 years ago
A planet's distance from the sun is 2.0x10^11 m. what is the orbital period?
Korolek [52]

Answer:

The square of the orbital period of a planet is directly proportional to the cube of the semimajor axis of its orbit.

Explanation:

hope this helps.

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2 years ago
The clouds that occur at the highest altitude are usually
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The answer is A. Cirrus clouds occur at the highest altitude.
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