Henry Ford's famous automobile that was the starting point for affordable mass-production in automobile manufacture was the Model T.
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Answer:
Unknown.
Explanation:
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Most fossils are found in sedimentary rock. Sedimentary rock is formed by dirt (sand, silt, or clay) and debris that settles to the bottom of an ocean or lake and compresses for such a long time that it becomes hard as a rock.
Answer:
The outer and inner core are made from iron and nickel.
Explanation:
Answer:
4N
Explanation:
From the problem statement, the weight of the piece of stone when fully immersed in water is 18N
The stone displaces water with the weight of 4N;
So, the weight of the stone in air is 4N.
- From Archimedes principle, we know that the weight of the water displaced when an object is placed in a liquid is the weight of the object.
- This method is often used to determine the weight of objects that are irregularly shaped.
- The weight of a regular body can be easily determined.
- But for irregular bodies, immersion in a liquid is a good approximation.