Answer:
31m/s
23.17°
Explanation:
Given the following :
From the diagram attached :
AB = 15m/s, BC = 18m/s, AC = a = resultant
Resolving Velocity into both vertical and horizontal component.
Kindly see attached picture for detailed explanation.
According to John Dalton’s observations when elements combine in a compound
2 answers:
<u>Answer:</u> When elements combine in a compound, the ratio of their masses is always the same
<u>Explanation:</u>
Dalton's theory is based on mainly two laws:
- Law of conservation of mass
- Law of constant composition.
Law of conservation of mass states that mass can neither be created nor be destroyed, but it can transformed from one form to another form.
Law of constant composition states that a compound always contain the elements in the fixed ratio by their masses.
<u>For Example:</u> In water , the hydrogen and oxygen are present in the fixed ratio of 1 : 9 by their mass.
Hence, when elements combine in a compound, the ratio of their masses is always the same
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Answer: (Screen Shot)
Based on the length of side of the cube given, the length of the needle is 2.28 inches.
<h3>What is the length of the needle?</h3>The length of the side of a cube and its diagonal are related by the formula below:
where s is length of side
Therefore, the length of the needle is 2.28 inches
Learn more about length of diagonal of cube at: brainly.com/question/800212
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