Answer:
Material's density
Explanation:
Seismic waves travel at different rates of speed based on a material's density. Hopefully, you understand that the Earth has three main layers: the crust, mantle, and core. Earthquake waves move faster through solids.
<span>The hypothetical scenario that would result in the moon not having different phases would be t</span>he moon always stays in one position relative to the earth and sun. Why? If the moon didn't have an phases it would stay in one position. Phases mean change, and if you observe the moon every night, you'll see how it changes; it repeats, so thus it's a pattern.
So, your correct answer should be: <span>D.The moon always stays in one position relative to the earth and sun.</span>
A wave sound is a longitudinal <span>wave.
HOPE THIS HELPS :)
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Answer:
The displacement of the block is 9 m.
Explanation:
Given that,
Mass of block = 2 kg
Time = 3 sec
The force is

The acceleration is

Put the value into the formula


We need to calculate the velocity
Using formula of acceleration

Put the value into the formula




We need to calculate the displacement
Using formula of velocity




Hence, The displacement of the block is 9 m.