Frequency of a sound wave is commonly referred to as pitch. That is the specialized name for frequency of a sound wave.
Just remember it as pitch.
Answer: C. illuminance of a surface.
a) Incandescence: The phenomenon of light emission by a body as a result of high temperature.
B. Luminous flux : It is the quantity of the energy of the light emitted per second in all directions.
C. Illuminance of a surface :describes the quantity of light emitted by a light source or received at a surface.
D. luminous intensity : the quantity of visible light that a point source radiates in a given direction.
Explanation:
We will calculate the gravitational potential energy as follows.
=
= 1164000 J
or, = 1164 kJ (as 1 kJ = 1000 J)
Now, we will calculate the change in potential energy as follows.
=
=
= -873000 J
or, = -873 kJ
Thus, we can conclude that change in gravitational potential energy is -873 kJ.
Answer:
A
Explanation:
because you cannot seperate the matter duhhh hahha
Answer: B.)He should wire each room in parallel with the next
Explanation:
The voltage across each component connected in parallel is same. When a component in a parallel circuit, it does not effect working of other components. On the other hand, when a component in series circuit is switched off, whole circuit breaks and other components stop working as well. Thus, in order to create a plan that will allow the homeowners to turn off lights in one room without turning the light off the lights in another, he should wire each room in parallel with the next. Option B is correct.