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levacccp [35]
2 years ago
15

The graph shows the amplitude of a passing wave over time in seconds (s) What is the approximate frequency of the wave shown? A.

6 Hz B. 0.2 0.4 Hz
Physics
1 answer:
Lera25 [3.4K]2 years ago
4 0

Answer:

0.2 I took the test

Explanation:

I took the test

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Svetradugi [14.3K]
You have three known variables:

Acceleration - 9.8m/s^2
Time - 1.85s
Initial Velocity - 0m/s

For the first part of your question:

v = u + at

v = (0)+(9.8)(1.1)

v = 10.78 m/s  v=11 m/s (2 significant figures)

For the second part of your question:

v=u+at

v=(0)+(9.8)(1.85)
v=18.13 m/s



This still needs to be converted to m/h:

18.13m/s = 18.13\times 3600 metres/h=65628  metres/hour

65628 metres/hour = 65628\div1600 mi/h = 40.7925 mi/h

= 41 mi/hr (2 significant figures)





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2 years ago
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(ii) Describe how the acceleration of the train at time t = 100 s differs from the acceleration
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Explanation:

Acceleration is the rate of change of velocity with time. When acceleration increases a body moves a faster velocity.

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A vehicle at time 100s will have a faster velocity compared to one at t = 20s

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larisa86 [58]

Answer:

Applying enough force in one direction to move the object, making kinetic energy.

Explanation:

Simpleness

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