Answer: The correct answer is (D).
Explanation:
Space photography help astronomers:
- To visualize and observe the position and appearance of celestial objects like: path of orbiting planets ,dim stars which invisible to naked eyes ,far away galaxies etc.
- To observe any phenomena which is occurring at macro level for example: collision of steroids and meteors etc.
Uranium is a fissionable material to which if you split it, it makes a lot of heat which is used in reactors for massive energy production.
Answer:
Sry i am unable to see the attached picture but i hope this helps
Explanation:
There are a couple of ways to prepare a buffer solution of a specific pH. In the first method, prepare a solution with an acid and its conjugate base by dissolving the acid form of the buffer in about 60% of the volume of water required to obtain the final solution volume
Answer:
Can you please tell us what the following are?
In the tables you can find that the empirical radius of a gold atom is 135 pm.
That is 135*10^-12 m.
Then the diameter is two times that: 270*10^-12 m.
Now calculate how many times that is 6.5 mm = 6.5*10^-3 m
=> (6.5*10^-3 m) / (270*10^-12 m) = 24,074,074.
Answer: 24,074,074