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Crank
3 years ago
15

Wha is the frequency of a wave having a period equal to 18 seconds?

Physics
1 answer:
Rainbow [258]3 years ago
5 0

Answer:

5.5 × 10-2 hertz

Explanation:

The time taken by a wave crest to travel a distance equal to the length of wave is known as wave period.

= 0.055 per second          (1 cycle per second = 1 Hertz)

Thus, we can conclude that the frequency of the wave is 5.5 X 10^{-2} hertz.

Hopes this helps, love <3

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Answer:

Explanation:

Acceleration roughly means “change in velocity.” If this change in velocity is consistently in one direction, the body will reach a point at which its velocity is zero.

Another consideration is when you drop a basketball onto the pavement. The ball falls, hits the ground, and comes back up. Because its direction of motion changed, you know that its velocity MUST have been 0 m/s at some point during the bounce.

This doesn't mean there was no acceleration at this point.

8 0
3 years ago
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A photon is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized.
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\lambda=3.99*10^{-7}m

Explanation:

According to the law of conservation of energy, the energy of the absorbed photon must be equal to the binding energy of the electron plus the energy of the released electron:

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1 eV is equal to 1.6*10^{-19}J, so:

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Solving for \lambda and replacing the given values:

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4 0
3 years ago
you nose out another runner to win 100.000 m dash. if your total time for the race was 13.800 s and you aced out the other runne
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Your average speed was

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Answer:225000000000

Explanation:

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