Answer:
Amplitude is a measure of the size of sound waves. It depends on the amount of energy that started the waves. Greater amplitude waves have more energy and greater intensity, so they sound louder. The same amount of energy is spread over a greater area, so the intensity and loudness of the sound is less.
Explanation:
Answer:
Explanation:
The final angular speed of the system is given by the help of the Principle of the Angular Momentum Conservation:
The final angular speed is:
Finally, the change in the rotational kinetic energy is:
Answer:
-18
Explanation:
acellus use the formula of magnification and watch your minus sign
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Answer: (b) a bicycle and a train</h3>
Inertia is the same thing as mass, more or less. Inertia is the tendency of the object to want to stay in place if at rest, or the object's tendency to stay in motion if a force is applied to it. A train's inertia is massive because it takes a lot of force to move such a large mass, or to slow it down. This is in comparison to the other objects (rubber ball, stone, bike, and the coins).