I dont know what the statements are but concave lens are thinner in the middle which cause light to diverge or scatter
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Answer:
In a chemical reaction, the atoms and molecules that interact with each other are called reactants. ... No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.
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A) 1.05 N
The power dissipated in the circuit can be written as the product between the pulling force and the speed of the wire:

where
P = 4.20 W is the power
F is the magnitude of the pulling force
v = 4.0 m/s is the speed of the wire
Solving the equation for F, we find

B) 3.03 T
The electromotive force induced in the circuit is:
(1)
where
B is the strength of the magnetic field
v = 4.0 m/s is the speed of the wire
L = 10.0 cm = 0.10 m is the length of the wire
We also know that the power dissipated is
(2)
where
is the resistance of the wire
Subsituting (1) into (2), we get

And solving it for B, we find the strength of the magnetic field:

Answer:
Bb can be an example
Explanation:
That is Because brown is dominated, so it is in Capital.