Answer:
medium
Examples:
A medium is a thing that the sound wave would travel through, like sound waves traveling through air. A mechanical wave cannot travel without a medium, like if the wave were trying to travel through a vacuum.
Answer:
B
Explanation:
Because blocks 2 and 3 have sides with unequal forces while block 1 doesnt. Plz drop a follow if this helps! ❤
Here is the answer that would best complete the given statement above. <span>As we learn more, SCIENTIFIC THEORIES are often revised. Scientific theories are considered as the substantial explanation of some aspect of the natural world which are gathered through scientific method. Hope this is the answer that you are looking for.</span>
Answer:
That is because light travels much faster than sound waves. … It takes approximately 5 seconds for the sound to travel 1 mile.
Explanation:
If the thunder follows the lightning almost instantly, you know the lightning is too close for comfort.
Answer: 0.41%
Explanation:
If we want to calculate the percentage decrease (the reduction) in weight of an airplane, we can use the given values of gravity, because the weight is directly proportional to the gravity acceleration.
Now the formula for the percentage decrease for ths case is:
Where:
is the gravity at sea level
is the gravity at 13000 m
This is the percentage reduction in the weight of an airplane