Crystalline Solids.
In theses solids the molecules or ions are arranged in a pattern.
The smallest repeating structure is called a unit cell.Thses unit cells combine to from crystal latttices.
Salt and minerals are such an example.
Thses are also called true solids
Answer:
the average acceleration is 8.8 m/s^2
Explanation:
The computation of the average acceleration is shown below;
As we know that
a = (v − u) ÷ t
where
a denotes average acceleration
v denotes the speed at the bottom of the slope
u denotes the speed at down the slop
t denotes time
= (25 - 3) ÷ 2.5
= 8.8 m/s^2
hence, the average acceleration is 8.8 m/s^2
Answer: Medium
Explanation: A medium is a substance through which a wave can pass. It can either be a solid, liquid or gas.
MAX PLANCK <span>was responsible for the contribution that light is emitted and absorbed in bundles that are dependent on the frequency of a light wave.
In 1900, Max Planck proposed that </span>proposed that light<span> and other </span>electromagnetic waves<span> were emitted in discrete packets of </span>energy. These packets are called "quanta". <span> This discovery became the stepping stone of the quantum theory.
This discovery was used by Albert Einstein as basis for his realization that light was made up of photons. Thus, giving credence to "photoelectric effect".
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