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V125BC [204]
4 years ago
9

If a wave has a frequency of 2 HZ what would it be in seconds?

Physics
1 answer:
gavmur [86]4 years ago
8 0

Frequency is not a length of time.  It's exactly the opposite.
Frequency tells you how often something happens.  In fact,
the unit 'Hz' means 'per second'.

   Frequency of 2 Hz means "It happens at 2 per second."

The time it takes for the thing to happen once is exactly the
'reciprocal' of the frequency ... ' 1 ' divided by the frequency.

If the frequency is  2 Hz, then the thing happens every 1/2 second.

If the frequency is 74 Hz, then it happens every  1/74 of a second.

If the frequency is 1 KiloHz, then it happens every  1/1000 second.

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Momentum before collision = momentum after collision

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Since the car and truck stick together, v₁ = v₂.

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Given m₁ = 1500 kg, u₁ = -15 m/s, m₂ = 4500 kg, and u₂ = 0 m/s:

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