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dimulka [17.4K]
3 years ago
12

In 2.8 s, a car increases its velocity from 20. M/s to 25 m/s. What is the acceleration of the car

Physics
1 answer:
Akimi4 [234]3 years ago
6 0
Acceleration= change in velocity/time; 5/2.8 , so a=1.785714286
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As the amplitude of a mechanical wave increases, which of the following quantities
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.c ...energy

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You are creating waves in a rope by shaking your hand back and forth. Without changing the distance your hand moves, you begin t
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Answer:

<u>Amplitude - remains the same</u>

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The amplitude of the wave remains the same since you are not changing the distance your hand moves and the amplitude of the wave depends on how much distance your hand covers while moving.

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The velocity of a wave depends on the medium in which it is travelling. Your wave was previously travelling in air and the new wave is also travelling in the same medium so the velocity of the wave remains unchanged.

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How many normal modes of oscillation or natural frequencies does each if the following have: (
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light inside the thin glass tube of a laparoscopic surgical device strikes the edge of the glass tube and is entirely reflected
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