It’s a feature of quantum-mechanical systems allowing a particle's time evolution to be arrested by measuring it frequently enough with respect to some chosen measurement setting.
Explanation:
Solidity means the quality or state of being firm or strong in structure. Density means the degree of compactness in a structure.
A. Tree
B. Shapes
C. Grass
D. Mehndi
Answer:
A=z+n
A=20+20
A=40
Explanation:
Not sure if I'm correct but I was taught that mass number is calculated by A=z+n where A is the mass number, z is the proton number and n is the number of neutrons.