Compounds
Explanation:
A compound is a substance composed of two or more kinds of atoms or elements that are joined together in a definite grouping.
The properties of a compound are distinct and different from those of the individual elements that are combined in its make-up.
Compound are pure substances. Like all pure substances, they have the following properties:
- They are homogeneous in all their parts throughout.
- They have a definite composition.
- They cannot be separated by physical means.
- They have a unique set of physical properties.
Pure substance are elements and compounds
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The blu-ray standard that defines rewritable disks is BD-RE which stands for Blu-ray Disc Recordable.
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What is BD-RE?</h3>
BD-RE stands for Blu-ray Disc Recordable and it refers to two direct to disc optical disc recording technologies that can be recorded on to a Blu-ray-based optical disc with an optical disc recorder.
Thus, the blu-ray standard that defines rewritable disks is BD-RE which stands for Blu-ray Disc Recordable.
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Mass concerns amount of substance contained in an object etc. It won't change just because you moved to a place of different gravity. weight however will change because apart from mass , it is affected by the acceleration due to gravity so if it changes, the weight changes.
Answer:
H = 109.14 cm
Explanation:
given,
Assume ,
Total energy be equal to 1 unit
Balance of energy after first collision = 0.78 x 1 unit
= 0.78 unit
Balance after second collision = 0.78 ^2 unit
= 0.6084 unit
Balance after third collision = 0.78 ^3 unit
= 0.475 unit
height achieved by the third collision will be equal to energy remained
H be the height achieved after 3 collision
0.475 ( m g h) = m g H
H = 0.475 x h
H = 0.475 x 2.3 m
H = 1.0914 m
H = 109.14 cm