Answer:
it increased by 29 sorry hope this helps
Answer:
4.875 V
Explanation:
N = 1300
diameter = 2.10 cm
radius = half of diameter = 1.05 cm
B1 = 0.130 T
B2 = 0 T
t = 12 ms
According to the law of electromagnetic induction,
Where, Ф be the magnetic flux linked with the coil
e = 4.875 V
Answer:
Explanation:
<em>Work </em>is the change in kinetic energy and may be calculated as the product of the force in the direction of the displacement times the displacement.
For a differential displacement, Δx, and a variable force, f(x), the differential work done is:
And the total work done from a point xi to xf is:
Thus, for this problem we have:
- f(x) =
The symbol is just indicating that the direction of the force is in the same direction of the displacement.
Integrating you get:
And that is 54.8697 joules (since the units for x are meter and the units for f(x) are newtons).
Rounded to two significant digits: 55 joules.
Answer:
B. The ability of the solute molecules only to absorb the energy of light (photons) at a specific wavelength.
Explanation:
Spectrophotometry is the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength. In case of a solution, both, solute and solvent would absorb the energy on an specific lenghtwave of light if they have a absortion coefficient diffrent of 0. The solvent could absorb energy of light, but it´s not typical, for example water does not absorb light in any lenghtwave. Therefore, for practical uses, we consider that only the solute absorbes, and it case the solvent does, that should be taken into account for the solute concentration calculation.
Answer:
Yes, the answer to the question is correct