Answer:
It reduces the melting point due to a defect in the arrangement of the crystal lattice.
Explanation:
The presence of impurities creates a disorderliness in the uniformity of the crystal structure. It lowers the melting point by a few degrees because it becomes easier to overcome the intermolecular force of attraction.
It makes the array of crystals disordered.
Lattice is a long chain three-dimensional arrangement of the molecules, atoms or ions in a crystal structure.
Answer:
Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence. Scientific methodology includes the following: ... Evidence. Experiment and/or observation as benchmarks for testing hypotheses.
Answer:
For ZnTe the maximum wavelength is 
For GaN the maximum wavelength is 
For InP the maximum wavelength is 
Explanation:
The explanation is shown on the first uploaded image
Complete Question
The complete question is shown on the first uploaded image
Answer:
The velocity of the bus at B is 
Explanation:
Let's take position B as base point .
From the diagram height between point B and A ia mathematically evaluated as
From the question we are told that
The velocity at location A is 
According the law of conservation of energy
Where 
is the potential energy at A which is mathematically represented as
is the kinetic energy energy at A which is mathematically represented as
is the kinetic energy at A which is mathematically represented as
Where 
is the velocity at location B
So
Making the subject of the formula
Substituting values
Lol they’re not gonna be able to answer if they can’t watch the video
