Generate Quiz 6A357B233EAA7

Temperature, density, elasticity, humidity, and the medium through which sound travels all affect how fast sound travels.

Option B is accurate since energy is equal to power × time. The kWh is a unit for “energy” because the SI unit of power is the watt (W).

V = F λ

λ = v/f

λ = 10/5

λ = 2m

A physics concept related to the elasticity of materials is Hooke’s law. It asserts that, provided the material stays within its elastic limit, the stress placed on a solid material under typical circumstances is exactly proportionate to the strain that results. This indicates that until a point is reached where the material can no longer regain its original shape and permanent deformation takes place, the amount of stretching or deformation of the material is directly proportional to the force applied. The modulus of elasticity, also known as Young’s modulus, is the constant that determines how proportionate stress and strain are.

When a capacitor’s charge is plotted against the voltage across it, a linear line beginning at the origin indicates a direct proportionality. The energy stored in the capacitor, represented by the area under the line, is equal to ½ x Q x V. Since Q = CV, the energy equation would be as follows if Q were substituted by CV:

½ C V2

Any area surrounding a charge where an electric test charge would encounter an electric force is referred to as an electric field.
Therefore, choice B is the right one.

3e x 2V = 6eV = 6 x 1.6 x 10-19 = 9.6 x 10-19 is the energy acquired.

Given:

4m was the initial length.

Length change = 40 cm = 0.4 m

Elongation as a percentage =?

The formula

In order to determine the percentage elongation, we must divide the wire’s length change by its initial length and then multiply the result by 100. Thus,

(Length Change / Original Length) × 100 = Percentage Elongation

Elongation percentage = (0.4 / 4) × 100

= 0.1 × 100

= 10%

It should be committed to memory since it is a fact.