Hard surfaces reflect sound back into the room, while carpets help to absorb the sound so it reflects less
Answer:
The answer is D because when the faults move that is the tectonic plates moving. So earth quakes will be forming when the fault moves.
Explanation:
Check the 1st 2nd 3rd and 4th boxes
Answer:
The spacing is 5.15 μm.
Explanation:
Given that,
Electron with energy = 25 eV
Wave length = 0.25 nm
Separation d= 0.16 mm
Distance D=3.3 m
We need to calculate the spacing
Using formula of width

Put the value into the formula



Hence, The spacing is 5.15 μm.
Explanation:
first answer is that the to and fro movement of a pendulum is known as amplitude