Answer:
ΔL = 3.704 10⁻⁴ mm
Explanation:
The body when heated increases the distance between its atoms, which results in a linear expansion of the bodies, which is described in the first approximation by the expression
ΔL = α L Δt
Where alf is the linear expansion coefficient, L the initial length, Dt the temperature variation and DL the length variation
ΔL = 5.50 10⁻⁷ 3.49 (213 - 20)
ΔL = 3.704 10⁻⁴ mm
Answer:
Among force and impulse, There is a lesser calculation for impulse. Also, it has same dimensions as momentum. Hence that is most closely related.
Answer: A. need the same number of electrons to fill their valence shells
B. have the same number of valence electrons
Explanation:
Elements are distributed in groups and periods in a periodic table.
Elements that belong to same groups will show similar chemical properties because they have same number of valence electrons.
Example: Flourine, chlorine and bromine are elements which belong to Group 17. They have 9, 17 and 35 electrons respectively and contain 7 valence electrons each and need one electron to complete their octet.
The chemical reactivity of elements is governed by the valence electrons present in the element.
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ HI ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
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Due to Rectilinear propagation of light
- A shadow is formed
- Formation of Day and Night
- An Image in the pinhole camera is formed
∞║║ HOPE THIS HELPS PLEASE MARK AS BRAINLIEST║║∞
The "down" beat of a musical meter is always the strongest. This is because the human ear tends to associate this rhythm with the "heart" of the song, although some musical styles put the emphasis on the "off beat".