<h3><u>Answer;</u></h3>
A. If two in-phase waves arrive simultaneously at a point, their amplitudes add up.
<h3><u>Explanation;</u></h3>
- <u>According to the principle of superposition, when two waves of the same kind meet at a point in space, the resultant displacement at that point is the vector sum of the displacements that the two waves would separately produce at that point.</u>
- Interference involves the superposing of two or more coherent waves to produce regions of maxima and minima in space, according to the principle of superposition.
- Interference may be constructive or destructive; Constructive interference occurs when two or more waves arrive at the screen in phase with each other, such that the amplitude of the resultant wave is the sum of the amplitude of the individual waves.
- Destructive interference occurs when two or more waves arrive out of phase with each other and resultant wave has minimum amplitude.
Answer:
Explanation:
<h2>In the case of artificial photosynthesis, the energy input used to generate the required electricity is solar energy. The optical solar energy is converted into electricity inside the material system using the same scientific principles as PV modules.</h2><h2>Hope it will help</h2>
Answer:
a) 
, b) 
Explanation:
a) According to the First Law of Thermodinamics, the system is not reporting any work, mass or heat interactions. Besides, let consider that such box is rigid and, therefore, heat contained inside is the consequence of internal energy.
The internal energy for a monoatomic ideal gas is:
Let assume that cubical box contains just one kilomole of monoatomic gas. Then, the temperature is determined from the Equation of State for Ideal Gases:
The thermal energy contained by the gas is:
b) The physical model for the cat is constructed from Work-Energy Theorem:
The speed of the cat is obtained by isolating the respective variable and the replacement of every known variable by numerical values:
Answer:
The friction force and the x component for the weight should be the reaction forces that are opposite and equal to the action force, which causes the locomotive to move up the hill if the velocity of the locomotive remains constant.
Explanation:
<u>When the locomotive starts to pull the train up, appears two reaction forces opposed to the action force in the direction of the move. </u>
The first one is due to the friction between the wheels and the ground, it will be the friction force (Fr):
Fr = μ*Pₓ =μmg*sin(φ)
<em>where μ: friction dynamic coefficient, Pₓ: is the weight component in the x-axis, m: total mass = train's mass + locomotive's mass, g: gravity, and sin(φ): is the angle respect to the x-axis.</em>
And the second one is the x component for the weight (Wₓ):
Wₓ = mg*cos(φ)
<em>where cos(φ): is the angle respect to the y-axis. </em>
<em> </em>
These two forces should be the same as the action force, which causes the locomotive to move up the hill if the velocity of the locomotive remains constant.
