Answer:
ferromagnetic materials are materials that are highly attracted to magnets while antiferromagnetic materials are materials that are not attracted by magnets
Answer:
Increase in length, e = 61.59 * 10⁻²m
The closest value from the options is option D. 61.65 x 10-2m
Explanation:
Young Modulus = stress/strain = (F/A)(/e/L) = F * L/A * e
where F = force; L = original length; A = area; e = increase in length
making e subject of formula;
Also force, F = mass * acceleration due to gravity;
mass = density * volume = density * area * length = ρ * A * L
Therefore, force, F = ρ * A * L * g
e = ρ *A * L* L * g/Y * A = ρgL²/Y
density = 0.7 gcm⁻³ = 0.7 * 10³ kgm⁻³; g = 9.8 ms⁻²
e = {0.7 * 10³ kgm⁻³ * (6.7 m)² * 9.8 ms⁻²}/5 * 10⁶ Nm²
e = 61.59 * 10⁻² m
The answer would be a compound because they are anti-manic metals which are created by two or more elements
Answer:
The distance between the particles have to be
x=0.01m or 1 cm
Explanation:
Using the law of Coulomb for two charge particles
Notice you don't know the value of K or q1 or q2 however the value is the same in both cases, so you don't need to know exactly the value of each one you can put constant in the equation like this:
C
Now to find r can use the value of K
Answer: +2.10V
Explanation:
Using Nernst equation :
where,
= standard emf for the cell = +2.20 V
n = number of electrons in oxidation-reduction reaction = 6
= emf of the cell = ?
= concentration =
= concentration =
Now put all the given values in the above equation, we get:
The standard emf for the cell using the overall cell reaction below is +2.10 V