Answer:
The answer to your question is: the first option
Explanation:
Meter is a unit of length in the SI, international system of units. Its symbol is m.
Nanometer is equivalent to 10⁻⁹ meters, as its name says it is used to measure extremely small particles.
-To solve this problem we use a rule of three.
1 meter ⇒ 10⁹ nanometers
x meters ⇒ 670 nanometers
Simplify
x = (670 x 1)/( 10⁹)
x = 6.7 x 10 ⁻⁷ meters
Mass number = number of protons + number of neutrons
number of protons = atomic number =7
number of neutrons= mass number - number of protons=16-7=9
Answer is B.9.
Hey there!
The Buoyant force is going to be equal to the weight of the water displaced and it would be like this 100 L(9.8 N/L) = 980 N.
Hope this helped and mind marking me brainliest. Thank you!
Pure water would be classified as non-conductor since it does not allow the flow of current into the solution. It does not contains any ions or free electrons so it cannot allow the flow of current into the system. It can allow current only when any impurities is present like salts.
Complete Question
The complete question is shown on the first uploaded image
Answer:
The density is 
Explanation:
From the question we are told that
the lattice constant is 
The density of Copper (
) is mathematically represented as
Where Z is the number of units in a unit cell and for BCC crystals Z =2
M is the molar mass of copper which same for Copper with a value of
is the Avogadro's constant with a value of 
Substituting values
